2017


    177) Elijah G. Schnitzler, Nathan Seifert, Ignes Kusuma, Wolfgang Jäger:
    “Rotational Spectroscopy of p-Toluic Acid and its 1:1 Complex with Water.”
    J. Phys. Chem. A, accepted.

    176) Jason T. A. Gall, Javix Thomas, Fan Xie, Zhibo Wang, Wolfgang Jäger, and Yunjie Xu:
    “Rotational spectroscopy of the methyl glycidate–water complex: conformation and water and methyl rotor tunnelling motions.”
    Phys. Chem. Chem. Phys., accepted.

    175) Paul L. Raston, Chrissy J. Knapp, and Wolfgang Jäger:
    “Microwave spectroscopy of carbonyl sulfide isotopologues solvated with 2-5 para-hydrogen molecules.”
    J. Mol. Spectrosc. 341, 23-26 (2017).

    174) Prasanta Das, Chrissy J. Knapp, and Wolfgang Jäger:
    “Ro-vibrational spectroscopy of the formic acid-d1 monomer embedded in helium nanodroplets.”
    J. Mol. Spectrosc. 341, 17-22 (2017).

    173) Kaiser K. Leung, Elijah G. Schnitzler, Wolfgang Jäger, and Jason S. Olfert:
    “Relative Humidity Dependence of Soot Aggregate Restructuring Induced by Secondary Organic Aerosol: Effects of Water on Coating Viscosity and Surface Tension.”
    Environ. Sci. Technol. Lett. 4, 386-390 (2017).

    172) Kaiser K. Leung, Elijah G. Schnitzler, Ramin Dastanpour, Steven N. Rogak, Wolfgang Jäger, and Jason S. Olfert:
    “Relationship between Soot Aggregate Restructuring Due to Surface Coatings and Primary Particle Number.”
    Environ. Sci. Technol. 51, 8376-8383 (2017).

    171) Paul L. Raston and Wolfgang Jäger:
    “Rotational spectroscopic study of quantum solvation in isotopologic (pH2)N-CO clusters.”
    J. Phys. Chem. A 121, 3671-3678 (2017).

    170) Wenyuan Huang, Javix Thomas, Wolfgang Jäger, and Yunjie Xu:
    “Tunnelling and barrier-less motions in the 2-fluoroethanol–water complex: a rotational spectroscopic and ab initio study.”
    Phys. Chem. Chem. Phys. 19, 12221-12228 (2017).

    169) Javix Thomas, Michael J. Carillo, Agapito Serrato III, Wei Lin, Wolfgang Jäger, and Yunjie Xu:
    “Rotational spectroscopic and theoretical study of the perfluorobutyric acid•••formic acid complex.”
    J. Mol. Spectrosc. 335, 88-92 (2017).

    168) Javix Thomas, Nathan A. Seifert, Wolfgang Jäger, and Yunjie Xu:
    “A direct link from the gas to the condensed phase: A rotational spectroscopic study of 2,2,2-Trifluoroethanol trimers.”
    Angew. Chem. 129, 6386-6390 (2017).
    Angew. Chem. Int. Ed. 56, 6289-6293 (2017).

    167) Elijah G. Schnitzler, Jakub M. Gac, and Wolfgang Jäger:
    “Coating surface tension dependence of soot aggregate restructuring.”
    J. Aerosol. Sci. 106, 43-55 (2017).

    166) Elijah G. Schnitzler, Nathan A. Seifert, Supriya Ghosh, Javix Thomas, Yunjie Xu, and Wolfgang Jäger:
    “Hydration of the simplest α-keto acid: a rotational spectroscopic and ab initio study of the pyruvic acid-water complex.”
    Phys. Chem. Chem. Phys. 19, 4440-4446 (2017).

    165) Luis A. Ferraz-Albani, Alberto Baldelli, Chrissy J. Knapp, Wolfgang Jäger, Reinhard Vehring, David S. Nobes, Jason S. Olfert, and Larry W. Kostiuk:
    “Enhanced evaporation of microscale droplets with an infrared laser.”
    J. Heat Transfer 139, 011503 - 1-8 (2017).


    2016


    164) Jiao Gao, Nathan A. Seifert, Javix Thomas, Yunjie Xu, and Wolfgang Jäger:
    “Structure and internal rotation dynamics of the acetone-neon complex studied by microwave spectroscopy.”
    J. Mol. Spectrosc. 330, 228-235 (2016).

    163) Javix Thomas, Michael J. Carillo, Agapito Serrato III, Elijah G. Schnitzler, Wolfgang Jäger, Yunjie Xu, and Wei Lin:
    “Conformational analysis of 3,3,3-trifluoro-2-(trifluoromethyl)propanoic acid.”
    Chem. Phys. Lett. 661, 210-214 (2016).

    162) Elijah G. Schnitzler, Courtenay Badran, and Wolfgang Jäger:
    “The Contrasting roles of water in the decarboxylation of two oxalic acid monohydrates: A combined rotational spectroscopic and ab initio study.”
    J. Phys. Chem. Lett. 7, 1143-1147 (2016).

    161) Elijah G. Schnitzler, Brandi L. M. Zenchyzen, and Wolfgang Jäger:
    “The o-toluic acid water complex: an atmospheric photo-oxidation product and its hydrate studied using microwave spectroscopy and ab initio calculations.”
    Phys. Chem. Chem. Phys., 18, 448-457 (2016).


    2015


    160) Jagadeeshwari Manne, Yunjie Xu, and Wolfgang Jäger:
    “Wavelength modulation spectroscopy with distributed feedback, pulsed and continuous wave quantum cascade lasers: a comparison.”
    IJAEST 3, 36-41 (2015).

    159) Javix Thomas, Xunchen Liu, Wolfgang Jäger, and Yunjie Xu:
    “Unusual H-bond topology and bifurcated H-bonds in the 2-fluoroethanol trimer.”
    Angew. Chem. 127, 11877-11881 (2015).
    Angew. Chem. Int. Ed. 54, 11711-11715 (2015).

    158) Supriya Ghosh, Javix Thomas, Wenyuan Huang, Yunjie Xu, and Wolfgang Jäger:
    “Rotational Spectra of Two Hydrogen-Bonded Methyl Salicylate Monohydrates: Relative Stability and Tunneling Motions.”
    J. Phys. Chem. Lett. 6, 3126-3131 (2015).

    157) Elijah G. Schnitzler, Mohammad Reza Poopari, Yunjie Xu and Wolfgang Jäger:
    “The Rotational spectroscopy of methyl benzoylformate and methyl mandelate: structure and internal dynamics of a model reactant and product of enantioselective reduction.”
    Phys. Chem. Chem. Phys. 17, 21942-21949 (2015).

    156) Paul L. Raston and Wolfgang Jäger:
    “Microwave Spectroscopy of the Seeded Binary and Ternary Clusters CO-(pH2)2, CO-pH2-He, CO-HD, and CO-(oD2)N=1,2.”
    J. Chem. Phys. 142, 144308 (2015).

    155) T. M. Fahim Amin, M. Qamrul Huda, John Tulip, and Wolfgang Jäger:
    “Design and Fabrication of a Long Arm Comb Drive Rotary Actuator with Externally Mounted Mirror for Optical Applications.”
    J. Microelectromech. S. 24, 1565-1574 (2015).

    154) Elijah G. Schnitzler, Brandi L. M. Zenchyzen, and Wolfgang Jäger:
    “High-resolution Fourier-transform microwave spectroscopy of methyl- and dimethylnaphtalenes.”
    Astrophys. J. 805, 141 - 1-7 (2015).


    2014


    153) T. M. Fahim Amin, M. Qamrul Huda, John Tulip, and Wolfgang Jäger:
    “A Virtual Pivot Point MEMS Actuator with Externally Mounted Mirror: Design, Fabrication and Characterization.”
    Sens. Transducers J. 183, 65-71 (2014).

    152) Elijah Schnitzler, Ashneil Dutt, André M. Charbonneau, Jason S. Olfert, and Wolfgang Jäger:
    “Soot aggregate restructuring due to coatings of secondary organic aerosol derived from aromatic precursors.”
    Environ. Sci. Technol. 48, 14309-14316 (2014).

    151) Javix Thomas, Wolfgang Jäger, and Yunjie Xu:
    “Chirality induction and amplification in the 2,2,2-Trifluoroethanol••propylene oxide adduct.”
    Angew. Chem. 126, 7405–7408 (2014).
    Angew. Chem. Int. Ed. 53, 7277–7280 (2014).

    150) Paul L. Raston, Gary Douberly, and Wolfgang Jäger:
    “Single and Double Resonance Spectroscopy of Methanol Embedded in Superfluid Helium Nanodroplets.”
    J. Chem. Phys. 141, 044301 - 1-13 (2014).

    149) Javix Thomas, Agapito Serrato III, Wei Lin, Wolfgang Jäger and Yunjie Xu:
    “Perfluorobutyric acid and its monohydrate: a chirped pulse and cavity based Fourier transform microwave spectroscopic study.”
    Chem. Eur. J. 20, 6148-6153 (2014).

    148) Elijah G. Schnitzler and Wolfgang Jäger:
    “The benzoic acid–water complex: a potential atmospheric nucleation precursor studied using microwave spectroscopy and ab initio calculations.”
    Phys. Chem. Chem. Phys. 16, 2305-2314 (2014).

    147) Javix Thomas, Oleksandr Sukhorukov, Wolfgang Jäger, and Yunjie Xu:
    “Direct spectroscopic detection of unique free OH orientation in methyl lactate--(water)1,2 clusters: hydration of a chiral hydroxy ester.”
    Angew. Chem. 126, 1175-1178 (2014).
    Angew. Chem. Int. Ed. 53, 1156-1159 (2014).


    2013


    146) Javix Thomas, Jensen Yiu, Johannes Rebling, Wolfgang Jäger, and Yunjie Xu:
    “Chirped-pulse and cavity-based Fourier transform microwave spectroscopy of a chiral epoxy ester: methyl glycidate.”
    J. Phys. Chem. A 117, 13249-13254 (2013).

    145) Javix Thomas, Oleksandr Sukhorukov, Wolfgang Jäger, and Yunjie Xu:
    “Chirped pulse and cavity based FTMW spectra of the methyl lactate - ammonia adduct: lock and key selectivity and internal rotation motions.”
    Angew. Chem. 125, 4498-4501 (2013).
    Angew. Chem. Int. Ed. 52, 4402-4405 (2013).

    144) M. Qamrul Huda, John Tulip, and Wolfgang Jäger:
    “Mid-infrared external cavity lasing through suppression of Fabry-Perot oscillation.”
    Proc. SPIE 8631, 86311R - 1-7 (2013).

    143) M. Qamrul Huda, T. M. Fahim Amin, Yuebin Ning, Graham McKinnon, John Tulip, and Wolfgang Jäger:
    “Fabrication of thin vertical mirrors through plasma etch and KOH:IPA polishing for integration into MEMS electrostatic actuators.”
    Proc. SPIE 8612, 86120D - 1-8 (2013).


    2012


    142) Steve Dempster, Oleksandr Sukhorukov, Qi-Yi Lei, and Wolfgang Jäger:
    “Rotational spectroscopic study of hydrogen cyanide embedded in small 4He clusters.”
    J. Chem. Phys. 137, 174303 - 1-8 (2012).

    141) T. M. Fahim Amin, M. Qamrul Huda, Yuebin Ning, Graham McKinnon, John Tulip, and Wolfgang Jäger:
    “A virtual pivot point MEMS rotary comb actuator for tunable laser applications.”
    Proc. SPIE 8490, 84900D - 1-9 (2012).

    140) Paul L. Raston, Donald D. Kelloway, and Wolfgang Jäger:
    “Infrared spectroscopy of HOCl embedded in superfluid helium nanodroplets: Probing the dynamical response of the solvent.”
    J. Chem. Phys. 137, 014302 - 1-6 (2012).

    139) Simon Merz, Nicolas Vanhaecke, Wolfgang Jäger, Melanie Schnell, and Gerard Meijer:
    “Decelerating molecules with microwave fields.”
    Phys. Rev. A 85, 063411 (2012).

    138) Paul L. Raston, Wolfgang Jäger, H. Li, Robert J. Le Roy, and Pierre-Nicholas Roy:
    “Observation of Persistent Molecular Superfluidity in para-Hydrogen Clusters.”
    Phys. Rev. Lett. 108, 253402 - 1-5 (2012).

    137) M. Qamrul Huda, John Tulip, and Wolfgang Jäger:
    “Anti reflection coatings in semiconductor lasers: effects on power emission and external cavity lasing.”
    Proc. SPIE 8277, 827721 - 1-9 (2012).

    136) M. Qamrul Huda, T. M. Fahim Amin, Yuebin Ning, Graham McKinnon, John Tulip, and Wolfgang Jäger:
    “Rotary microelectromechanical system comb-drive actuator with smooth sidewall for photonic applications.”
    J. Micro/Nanolith. MEMS MOEMS 11, 023012-1 - 8 (2012).

    135) Jagadeeshwari Manne, Alan Lim, John Tulip, and Wolfgang Jäger:
    “Sensitive detection of acrolein and acrylonitrile with a pulsed quantum cascade laser.”
    Appl. Phys. B 107, 441-447 (2012).

    134) M. Qamrul Huda, T. M. Fahim Amin, Yuebin Ning, Graham McKinnon, John Tulip, and Wolfgang Jäger:
    “Rotary MEMS comb-drive actuator with large deflection for photonic applications.”
    Proc. SPIE 8248, 824804 - 1-8 (2012).
    Comb Actuator


    2011


    133) Jagadeeshwari Manne, Alan Lim, Wolfgang Jäger, and John Tulip:
    “Wavelength modulation spectroscopy with a pulsed quantum cascade laser for the sensitive detection of acrylonitrile.”
    Appl. Opt. 50, E112–E118 (2011). (Feature Issue: Fiber Optics and Photonics)

    132) Paul L. Raston, Chrissy J. Knapp, and Wolfgang Jäger:
    “Rotovibrational spectroscopy of hydrogen peroxide embedded in superfluid helium nanodroplets.”
    Phys. Chem. Chem. Phys. 13, 18789–18798 (2011). (Themed Issue: Physics and Chemistry of Cold Molecules)

    131) Jagadeeshwari Manne, Alan Lim, Wolfgang Jäger, and John Tulip:
    “Wavelength modulation spectroscopy with a pulsed quantum cascade laser.”
    Proc. SPIE 8173, 81730D - 1-7 (2011).

    130) Jens Riedel, Steven Hoekstra, Wolfgang Jäger, Joop J. Gilijamse, Sebastiaan Y.T. van de Meerakker, and Gerard Meijer:
    “Accumulation of Stark-Decelerated NH Molecules in a Magnetic Trap.”
    Eur. Phys. J. D 65, 161–166 (2011). (Topical Issue: Cold Quantum Matter)

    129) Chrissy J. Knapp, Yunjie Xu, and Wolfgang Jäger:
    “Rotational Spectra of Minor Isotopologues of 4HeN-N2O (N=3-19) Clusters.”
    J. Mol. Spectr. 268, 130-135 (2011).

    128) Kai Brendel, Heinrich Mäder, Yunjie Xu, and Wolfgang Jäger:
    “The rotational spectra of the fluorobenzene•••water and p-difluorobenzene•••water dimers: Structure and internal dynamics.”
    J. Mol. Spectr. 268, 47-52 (2011).

    127) Julie M. Michaud, Wendy C. Topic, and Wolfgang Jäger:
    “Spectroscopic and Theoretical Study of the Weakly Bound H2-HCCCN Dimer.”
    J. Phys. Chem. A 115, 9456–9466 (2011).

    126) Matthew T. Parsons, Ihor Sydoryk, Alan Lim, Thomas J. McIntyre, John Tulip, Wolfgang Jäger, and Karen McDonald:
    “Real-Time Monitoring of Benzene, Toluene, and p-Xylene in a Photoreaction Chamber with a Tuneable Mid-Infrared Laser and Ultraviolet Differential Optical Absorption Spectroscopy.”
    Appl. Opt. 50, A90-A99 (2011).

    125) Carlo Callegari, Wolfgang Jäger, and Frank Stienkemeier:
    “Helium Nanodroplets.” in Nanoparticles and Quantum Dots, Handbook of Nanophysics, K. D. Sattler, Ed., CRC Press, Taylor & Francis, 2011.


    2010


    124) Paul L. Raston, Yunjie Xu, Wolfgang Jäger, Alexey V. Potapov, Leonid A. Surin, Boris S. Dumesh, and Stephan Schlemmer:
    “Rotational Study of Carbon Monoxide Isotopologues in Small 4He Clusters.”
    Phys. Chem. Chem. Phys. 12, 8260-8267 (2010). (Themed Issue: Chemical dynamics of large amplitude motion)
    He4-CO

    123) Hui Li, Yongdong Liu, Wolfgang Jäger, Robert J. Le Roy, and Pierre-Nicholas Roy:
    “Theoretical study of the microwave spectrum of isotopologues of OCS-(He)2.”
    Can. J. Chem. 88, 1146-1153 (2010).

    122) Jagadeeshwari Manne, Alan Lim, Wolfgang Jäger, and John Tulip:
    “Off-axis cavity enhanced spectroscopy based on a pulsed quantum cascade laser for sensitive detection of ammonia and ethylene.”
    Appl. Opt. 49, 5302-5308 (2010).

    121) Jagadeeshwari Manne, Wolfgang Jäger, and John Tulip:
    “Detection of acrolein and acrylonitrile with a pulse, room temperature quantum cascade laser.”
    Proc. SPIE 7750, 77500V - 1-8 (2010).

    120) Alexandre Lytkine, Alan Lim, Wolfgang Jäger, and John Tulip:
    “Tunable diode laser spectroscopy of benzene near 1684 nm with a low-temperature VCSEL.”
    Appl. Phys. B 99, 825-832 (2010).

    119) Douglas Vujanic, Wolfgang Jäger, and John Tulip:
    “Effect of optical feedback on a VCSEL TDLAS.”
    Appl. Phys. B 99, 585-589 (2010).

    118) Alexandre Lytkine, Wolfgang Jäger, and John Tulip:
    “Tunable diode laser spectroscopy of ethylene oxide near 1693 nm.”
    Appl. Phys. B 98, 871-876 (2010).

    117) Ihor Sydoryk, Alan Lim, Wolfgang Jäger, John Tulip, and Matthew T. Parsons:
    “Detection of benzene and toluene gases using a mid-infrared cw external cavity quantum cascade laser at atmospheric pressure.”
    Appl. Opt. 49, 945-949 (2010).


    2009


    116) Alexey V. Potapov, Leonid A. Surin, V. A. Panfilov, Boris S. Dumesh, Thomas F. Giesen, Stephan Schlemmer, Paul L. Raston, and Wolfgang Jäger:
    “Rotational Spectroscopy of the CO–paraH2 Molecular Complex.”
    Astrophys. J. 703, 2108-2112 (2009).

    115) Matthew Dzikowski, Aleksandr Klyashitsky, Wolfgang Jäger, and John Tulip:
    “Open path spectroscopy of methane using a battery operated vertical cavity surface-emitting laser system.”
    Proc. SPIE 7386, 73861H - 1-9 (2009).

    114) Rudolf Lehnig, Paul L. Raston and Wolfgang Jäger:
    “Rotational spectroscopy of single carbonyl sulfide molecules embedded in superfluid helium nanodroplets.”
    Faraday Discuss. 142, 297-309 (2009). (Themed Issue: Cold and Ultracold Molecules)

    113) Jagadeeshwari Manne, Wolfgang Jäger, and John Tulip:
    “Sensitive detection of ammonia and ethylene with a pulsed quantum cascade laser using intra- and inter-pulse spectroscopic techniques.”
    Appl. Phys. B 94, 337-344 (2009).


    2008


    112) Leonid A. Surin, A. V. Potapov, Boris S. Dumesh, Stephan Schlemmer, Yunjie Xu, Paul L. Raston, and Wolfgang Jäger:
    “Rotational Study of Carbon Monoxide Solvated with Helium Atoms.”
    Phys. Rev. Lett. 101, 233401 - 1-4 (2008).

    111) Julie M. Michaud and Wolfgang Jäger:
    “Rotational spectroscopic study of carbonyl sulfide solvated with hydrogen molecules.”
    J. Chem. Phys. 129, 144311 - 1-11 (2008).

    110) Jagadeeshwari Manne, Wolfgang Jäger, and John Tulip:
    “Pulsed quantum cascade laser based cavity ring-down and cavity enhanced spectroscopy for the detection of ethylene.”
    Proc. SPIE 7099, 709922 - 1-8 (2008).

    109) Qing Wen and Wolfgang Jäger:
    “Study of the Xe–NH3 van der Waals complex: High-resolution microwave spectra and ab initio calculations.”
    J. Chem. Phys. 128, 204309 - 1-11 (2008).

    108) Yunjie Xu and Wolfgang Jäger:
    “Isotopic Studies of the Binary Complex He-OCS.”
    J. Mol. Spectrosc. 251, 326-329 (2008).

    107) Qing Wen and Wolfgang Jäger:
    “Spectroscopic Study of the Ne–Xe–NH3 van der Waals Trimer.”
    Phys. Chem. Chem. Phys. 10, 2496 - 2501 (2008).
    Ne-Xe-NH3

    106) Julie M. Michaud, Kristine Liao, and Wolfgang Jäger:
    “High-resolution rotational spectroscopy of H2 – OCS: A study of minor isotopomers of OCS.”
    Mol. Phys. 106, 23-31 (2008).

    105) Jagadeeshwari Manne, Wolfgang Jäger, and John Tulip:
    “A quantum cascade laser based room temperature system for sensitive detection of ammonia and ethylene.”
    Proc. SPIE 6900, 690014 - 1-8 (2008).

    104) Alexandre Lytkine, Alan Lim, Wolfgang Jäger, and John Tulip:
    “Gas concentration and temperature measurements using widely tunable long-wavelength VCSEL.”
    Appl. Phys. B 90, 323 - 327 (2008).

    103) Alexandre Lytkine, Brian Lau, A. Lim, Wolfgang Jäger, and John Tulip:
    “Range-Resolved Gas Concentration Measurements using Tunable Semiconductor Lasers.”
    Appl. Phys. B 90, 339 - 343 (2008).

    102) Yunjie Xu and Wolfgang Jäger:
    “Microwave Rotational Spectroscopy.” in Applications of Physical Methods to Inorganic and Bioinorganic Chemistry, Encyclopedia of Inorganic Chemistry, R. A. Scott, Ed., Wiley, 2008.


    2007


    101) Alexandre Lytkine, Wolfgang Jäger, and John Tulip:
    “New concept design of differential absorption lidar: fusion of DIAL and TDLS methods.”
    Proc. SPIE 6750, 67500C - 1-12 (2007).

    100) Rudolf Lehnig, Nicholas Blinov, and Wolfgang Jäger:
    “Unexpected Structure of the Ammonia Tunneling Inversion Transition in Helium Droplets.”
    J. Chem. Phys. 127, 241101 - 1-4 (2007).

    99) Alexandre Lytkine, A. Lim, J. Bacque, Wolfgang Jäger, and John Tulip:
    “Low-temperature performance of InP-based Long-wavelength VCSELs.”
    Appl. Phys. B 89, 579 - 584 (2007).

    98) Zhenhong Yu, Kelly J. Higgins, William Klemperer, Michael C. McCarthy, Patrick Thaddeus, Kristine Liao, and Wolfgang Jäger:
    “Rotational spectra of the van der Waals complexes of molecular hydrogen and OCS.”
    J. Chem. Phys. 127, 054305 - 1-8 (2007).

    97) Chakree Tanjaroon and Wolfgang Jäger:
    “High–resolution microwave spectrum of the weakly bound helium–pyridine complex.”
    J. Chem. Phys. 127, 034302 - 1-6 (2007).

    96) A. R. W. McKellar, Yunjie Xu, and Wolfgang Jäger:
    “Spectroscopic studies of OCS-doped 4He clusters with 12 to 70 atoms: observation of broad oscillations in the rotational moment of inertia.”
    J. Phys. Chem. A 111, 7329-7337 (2007).

    95) Qing Wen and Wolfgang Jäger:
    “Rotational Spectra of the Xe–(H2O)2 van der Waals Trimer: Xenon as a Probe of Electronic Structure and Dynamics.”
    J. Phys. Chem. A 111, 2093-2097 (2007).


    2006


    94) A. R. W. McKellar, Yunjie Xu, and Wolfgang Jäger:
    “Spectroscopic Exploration of Atomic Scale Superfluidity in Doped Helium Nanoclusters.”
    Phys. Rev. Lett. 97, 183401 - 1-4 (2006).

    93) Jagadeeshwari Manne, Oleksandr Sukhorukov, Wolfgang Jäger, and John Tulip:
    “Pulsed quantum cascade laser based cavity ring-down spectroscopy for ammonia detection in breath.”
    Appl. Opt. 45, 9230-9237 (2006).

    92) Wendy Topic, Wolfgang Jäger, Nicholas Blinov, Pierre-Nicholas Roy, M. Botti, and Saverio Moroni:
    “Rotational spectrum of cyanoacetylene solvated with helium atoms.”
    J. Chem. Phys. 125, 144310 - 1-5 (2006).

    91) Alexandre Lytkine, Wolfgang Jäger, and John Tulip:
    “Frequency chirped differential absorption LIDAR.”
    Proc. SPIE 6367, 63670J - 1-8 (2006).

    90) Hans D. Osthoff and Wolfgang Jäger:
    “Mid-infrared spectrum of the weakly bound complex CO2–SO2.”
    Mol. Phys. 104, 2861-2869 (2006).

    89) Qing Wen and Wolfgang Jäger:
    “Rotational spectroscopic and ab initio studies of the Xe–H2O van der Waals dimer.”
    J. Phys. Chem. A 110, 7560-7567 (2006).

    88)Alexandre Lytkine, Wolfgang Jäger, and John Tulip:
    “Non-linear frequency tuning of long-wavelength VCSELs: Phenomenological description.”
    Proc. SPIE 6185, 61851A - 1-8 (2006).

    87) Rudolf Lehnig and Wolfgang Jäger:
    “Infrared spectroscopy of the antisymmetric stretching mode of 16OC18O in helium nanodroplets.”
    Chem. Phys. Lett. 424, 146-150 (2006).

    86) Oleksandr Sukhorukov, Alexandre Lytkine, Jagadeeshwari Manne, John Tulip, and Wolfgang Jäger:
    “Cavity ring-down spectroscopy with a pulsed distributed feedback quantum cascade laser.”
    Proc. SPIE 6127, 61270A - 1-11 (2006).

    85) Yunjie Xu, Nicholas Blinov, Wolfgang Jäger, and Pierre-Nicholas Roy:
    “Recurrences in rotational dynamics and experimental measurement of superfluidity in doped helium clusters.”
    J. Chem. Phys. 124, 081101 - 1-4 (2006).

    84) John Tulip, Wolfgang Jäger, and Alexandre Lytkine:
    “Gas phase chemical analysis using long-wavelength vertical-cavity surface-emitting lasers.”
    Opt. Eng. 45, 044301 - 1-8 (2006).

    83) Qing Wen and Wolfgang Jäger:
    “Microwave and ab initio Studies of the Xe–CH4 van der Waals Complex.”
    J. Chem. Phys. 124, 014301 - 1-10 (2006).

    82) Alexandre Lytkine, Wolfgang Jäger, and John Tulip:
    “Frequency Tuning of Long–Wavelength VCSELs: Experimental Study and Analytical Description.”
    Spectrochim. Acta A 63, 940-946 (2006).

    81) Alexandre Lytkine, Jagadeeshwari Manne, Wolfgang Jäger, and John Tulip:
    “Characterization of a 10.3-μm pulsed DFB quantum cascade laser.”
    Spectrochim. Acta A 63, 947-951 (2006).


    2005


    80) Yunjie Xu, Jennifer van Wijngaarden, and Wolfgang Jäger:
    “Microwave Spectroscopy of Ternary and Quaternary van der Waals Clusters.”
    Int. Rev. Phys. Chem. 24, 301-338 (2005).

    79) Wendy C. Topic and Wolfgang Jäger:
    “The Weakly Bound He–HCCCN Complex: High-resolution Microwave Spectra and Intermolecular Potential Energy Surface.”
    J. Chem. Phys. 123, 064303 - 1-12 (2005).

    78) Brandon S. Tackett, Dennis J. Clouthier, Jennifer Landry, and Wolfgang Jäger:
    “Fourier–Transform Microwave Spectroscopy of HSiBr: Exploring the Si–Br Bond Through Quadrupole Hyperfine Coupling.”
    J. Chem. Phys. 122, 214314 - 1-6 (2005).

    77) Alexandre Lytkine, Wolfgang Jäger, and John Tulip:
    “Long-wavelength VCSELs for applications in absorption spectroscopy: tuning rates and modulation performances.”
    Proc. SPIE 5737, 157-166 (2005).

    76) Qing Wen and and Wolfgang Jäger:
    “Microwave Spectra of the Xe–N2 van der Waals Complex: A Comparison of Experiment and Theory.”
    J. Chem. Phys. 122, 214310 - 1-9 (2005).

    75) Alexandre Lytkine, Wolfgang Jäger, and John Tulip:
    “Multi–species gas detection with long–wavelength VCSEL.”
    Proc. SPIE 5594, 155-163 (2005).

    74) Yunjie Xu, Patricia Arboleda, and Wolfgang Jäger:
    “Microwave Spectroscopic Study of the CO–H2S Complex.”
    J. Mol. Spectrosc. 229, 47 (2005).


    2004


    73) XiaoGeng Song, Yunjie Xu, Pierre-Nicholas Roy, and Wolfgang Jäger:
    “Rotational spectrum, potential energy surface, and bound states of the weakly bound complex He–N2O.”
    J. Chem. Phys. 121, 12308 (2004).

    72) Yaqian Liu and Wolfgang Jäger:
    “Microwave Investigation of the CO–CH4 van der Waals Complex.”
    J. Chem. Phys. 121, 6240 (2004).

    71) Yaqian Liu and Wolfgang Jäger:
    “Microwave and ab initio Studies of Rare Gas–Methane van der Waals Complexes.”
    J. Chem. Phys. 120, 9047 (2004).

    70)Alexandre Lytkine, Wolfgang Jäger, John Tulip:
    “Multi-species gas detection with long-wavelength VCSEL”
    Proc. SPIE 5594, 155-163 (2004).

    69) Hans D. Osthoff, Wolfgang Jäger, Jonathon Walls, William A. van Wijngaarden:
    “An Axial Molecular Beam Diode Laser Spectrometer.”
    Rev. Sci. Instrum. 75, 46 (2004).


    2003


    68) Yunjie Xu, Wolfgang Jäger, Jian Tang, and A. R. W. McKellar:
    “Spectroscopic Studies of Quantum Solvation in 4HeN–N2O Clusters.”
    Phys. Rev. Lett. 91, 163401 (2003).
    This article is featured on Physical Review Focus: The Slightest Splash of Superfluid?
    and in Nature: Seven Atoms Make a Superfluid. [Nature 425, 914 (2003)].
    He6-N2O

    67) Jennifer van Wijngaarden and Wolfgang Jäger:
    “The Ne3–NH3 van der Waals Tetramer: Rotational Spectra and ab initio Calculations.”
    J. Am. Chem. Soc. 125, 14631 (2003).
    Ne3-NH3

    66) Aiko Huckauf, Wolfgang Jäger, Peter Botschwina, and Rainer Oswald:
    “The Ar–HCCCN van der Waals Complex: Microwave Spectroscopy and Coupled Cluster Calculations.”
    J. Chem. Phys. 119, 7749 (2003).

    65) Yaqian Liu and Wolfgang Jäger:
    “Microwave and ab initio Studies of the Internal Rotation of Ethylene in the Ar–Ethylene and Ne–Ethylene van der Waals Complexes.”
    J. Chem. Phys. 119, 8449 (2003).

    64) Yunjie Xu and Wolfgang Jäger:
    “Rotational Spectroscopic Investigation of Carbonyl Sulfide Solvated with Helium Atoms.”
    J. Chem. Phys. 119, 5457 (2003).

    63) Yaqian Liu and Wolfgang Jäger:
    “Microwave Spectroscopic Investigation of the Ne–Acetylene van der Waals Dimer.”
    Phys. Chem. Chem. Phys. 5, 1744 (2003).


    2002


    62) Jian Tang, Yunjie Xu, A. R. W. McKellar, and Wolfgang Jäger:
    “Quantum Solvation of Carbonylsulfide with Helium Atoms.”
    Science 297, 2030 (2002).
    The abstract as well as the full text of this article is available online.
    He8-OCS

    61) Jennifer van Wijngaarden and Wolfgang Jäger:
    “Microwave Rotational Spectroscopic Investigation of the Ar2–NH3 van der Waals Trimer.”
    Phys. Chem. Chem. Phys. 4, 4883 (2002).

    60) Wei Lin, Stewart E. Novick, Masaru Fukushima, and Wolfgang Jäger:
    “Hyperfine Interactions in HSiCl.”
    J. Phys. Chem. A. 106, 7703 (2002).

    59) Hans D. Osthoff, Jonathon Walls, William A. van Wijngaarden, and Wolfgang Jäger:
    “Axial Molecular–Beam Mid–Infrared Diode Laser Spectrometer.”
    Diode Lasers and Applications in Atmospheric Sensing, Proc. SPIE 4817, 249-257 (2002).

    58) Jennifer van Wijngaarden and Wolfgang Jäger:
    “Microwave Spectra of, and ab initio calculations for, the Ne2–NH3 van der Waals Trimer.”
    Chem. Phys. 283, 29 (2002).

    57) Yaqian Liu and Wolfgang Jäger:
    “Rotational Spectra and Internal Dynamics of Ne–H2S.”
    Mol. Phys. 100, 611 (2002).

    56) Jennifer van Wijngaarden and Wolfgang Jäger:
    “Microwave Rotational Spectra of the Ar3–NH3 van der Waals Tetramer.”
    J. Chem. Phys. 116, 2379 (2002).

    55) J.-U. Grabow, H. Hartwig, N. Heineking, W. Jäger, H. Mäder, H. W. Nicolaisen, and W. Stahl:
    “The Microwave Spectrum of 2–Methylthiazole: Methyl Internal Rotation and 14N Nuclear Quadrupole Coupling."
    J. Mol. Struct. 612, 349 (2002).


    2001


    54) Yunjie Xu and Wolfgang Jäger:
    “Fourier Transform Microwave Spectroscopic Investigation of a Very Weakly Bound Ternary Complex: OCS–He2.”
    Chem. Phys. Lett. 350, 417 (2001).

    53) Jennifer van Wijngaarden and Wolfgang Jäger:
    “Investigation of the Ne–NH3 van der Waals complex: rotational spectrum and ab initio calculations.”
    J. Chem. Phys. 115, 6504 (2001).

    52) Jennifer van Wijngaarden and Wolfgang Jäger:
    “Microwave rotational spectra of the Kr–NH3 van der Waals complex.”
    Mol. Phys. 99, 1215 (2001).

    51) Jennifer van Wijngaarden and Wolfgang Jäger:
    “Microwave spectra of the Ar–ND3 van der Waals complex and its partially protonated isotopomers.”
    J. Chem. Phys. 114, 3968 (2001).

    50) Yunjie Xu and Wolfgang Jäger:
    “Fourier transform microwave spectra of the very weakly bound He–CO2 dimer.”
    J. Mol. Struct. 599, 211 (2001).

    49) Yaqian Liu and Wolfgang Jäger:
    “Isotopic Study of Rotational Spectra of the Ar–acetylene Complex.”
    J. Mol. Spectrosc. 205, 177 (2001).

    48) Mwanki S. Ngari, Yunjie Xu, and Wolfgang Jäger:
    “The ArNe–N2O van der Waals trimer: a high resolution spectroscopic study of its rotational spectrum, structure, and dynamics.”
    Mol. Phys. 99, 13 (2001).


    2000


    47) Yunjie Xu and Wolfgang Jäger:
    “Spectroscopic investigation of the ternary Ne–Ne–OCS van der Waals cluster: additive and non-additive interactions.”
    Phys. Chem. Chem. Phys. 2, 3549 (2000).

    46) Jennifer van Wijngaarden and Wolfgang Jäger:
    “Rotational Spectra of the Kr–H2O van der Waals Complex.”
    Mol. Phys. 98, 1575 (2000).

    45) Yunjie Xu and Wolfgang Jäger:
    “The Dynamics of the CO–N2 Interaction: Strong Coriolis Coupling in CO-paraN2.”
    J. Chem. Phys. 113, 514 (2000).


    1999


    44) Yunjie Xu, Wolfgang Jäger, L. A. Surin, I. Pak, L. A. Panfilov, and G. Winnewisser:
    “Microwave and millimeter of ortho-N2 states of CO–N2.”
    J. Chem. Phys. 111, 10476 (1999).

    43) Yunjie Xu and Wolfgang Jäger:
    “Direct observation of rotational transitions of the CO–CO dimer.”
    J. Chem. Phys. 111, 5754 (1999).

    42) Mwanki S. Ngari and Wolfgang Jäger:
    “Fourier Transform Microwave Rotational Spectra of the Ne2–N2O and Ar2–N2O van der Waals Trimers.”
    J. Chem. Phys. 111, 3919 (1999).

    41) Mwanki S. Ngari, Yunjie Xu, and Wolfgang Jäger:
    “Rotational Spectroscopic Investigation of the Weak Interaction Between CO and N2O.”
    J. Mol. Spectrosc. 197, 244 (1999).

    40) A. R. W. McKellar, Yunjie Xu, Wolfgang Jäger, and C. Bissonette:
    “Isotopic probing of very weak intermolecular forces: microwave and infrared spectra of CO–He isotopomers.”
    J. Chem. Phys. 110, 10766 (1999).

    39) Yunjie Xu, Geoffrey S. Armstrong, and Wolfgang Jäger:
    “Spectroscopic Study of the Mixed Rare Gas - Molecule van der Waals Trimer NeArHCl.”
    J. Chem. Phys. 110, 4354 (1999).


    1998


    38) Vladimir N. Markov, Yunjie Xu, and Wolfgang Jäger:
    “A microwave-millimetre-wave double-resonance spectrometer for the investigation of van der Waals complexes.”
    Rev. Sci. Instrum. 69, 4061–4067 (1998).

    37) Mwanki S. Ngari and Wolfgang Jäger:
    “Ground State Average and Partial Substitution Structures of the Ar–N2O van der Waals Complex.”
    J. Mol. Spectrosc. 192, 452–454 (1998).

    36) Yunjie Xu and Wolfgang Jäger:
    “Rotational Spectra of Ne–CO2 Isotopomers.”
    J. Mol. Spectrosc. 192, 435–440 (1998).

    35. Mwanki S. Ngari and Wolfgang Jäger:
    “Study of the Rotational Spectrum of the Ne–N2O van der Waals Dimer with a Fourier Transform Microwave Spectrometer.”
    J. Mol. Spectrosc. 192, 320–330 (1998).

    34) W. Jäger, Y. Xu, G. Armstrong, M. C. L. Gerry, F. Y. Naumkin, F. Wang, and F. R. W. McCourt:
    “Microwave Spectra of the Ne–N2 van der Waals Complex: Experiment and Theory.”
    J. Chem. Phys. 109, 5420–5432 (1998).

    33) Yunjie Xu and Wolfgang Jäger:
    “Spectroscopic investigation of weak interactions in the van der Waals trimer NeArCO2.”
    Mol. Phys. 93, 727–737 (1998).


    1997


    32) Yunjie Xu and Wolfgang Jäger:
    “High resolution spectroscopy of Ne and Ar containing noble gas clusters.”
    J. Chem. Phys. 107, 4788–4796 (1997).

    31) Yunjie Xu and Wolfgang Jäger:
    “Evidence for heavy atom large amplitude motions in RG–cyclopropane van der Waals complexes (RG = Ne, Ar, Kr) from rotation-tunneling spectroscopy.”
    J. Chem. Phys. 106, 7968–7980 (1997).


    Before 1997


    30) Kaley A. Walker, Teruhiko Ogata, Wolfgang Jäger, Michael C.L. Gerry and Irving Ozier:
    “Pure rotational spectra of the van der Waals complexes Ne–CO, Kr–CO, and Xe–CO.”
    J. Chem. Phys. 106, 7519-7530 (1997).

    29) Thomas Brupbacher, Robert K. Bohn, Wolfgang Jäger, Michael C.L. Gerry, T. Pasinszki and N.P.C. Westwood:
    “Microwave spectrum and geometry of cyanogen N–oxide, NCCNO.”
    J. Mol. Spectrosc. 181, 316-322 (1997).

    28) Martin Hepp, Wolfgang Jäger, Igor Pak and Gisbert Winnewisser:
    “Absorption measurements of Ar–CO b–type rotational transitions with a supersonic jet millimeter–wave spectrometer.”
    J. Mol. Spectrosc. 176, 58-63 (1996).

    27) Heinrich Mäder, Nils Heineking, Wolfgang Stahl, Wolfgang Jäger and Yunjie Xu:
    “Rotational spectrum of the isotopically substituted van der Waals complex Ar–CO2 investigated with a molecular beam FTMW spectrometer.”
    J. Chem. Soc., Faraday Trans. 92, 901-905 (1996).

    26) Yunjie Xu, Wolfgang Jäger, Joyce Djauhari and Michael C.L. Gerry:
    “Rotational spectra of the mixed rare gas dimers Ne–Kr and Ar–Kr.”
    J. Chem. Phys. 103, 2827-2833 (1995).

    25) Wolfgang Jäger and Michael C.L. Gerry:
    “Microwave – millimeter–wave double resonance experiments on Ar–CO.”
    J. Chem. Phys. 102, 3587-3592 (1995).

    24) Wolfgang Jäger, Michael C.L. Gerry, Carey Bissonette, and FRW McCourt:
    “Pure rotational spectrum of, and potential energy surface for, the Ar–N2 van der Waals complex.”
    Faraday Disc. Chem. Soc. 97, 105-118 (1994).

    23) Yunjie Xu, Wolfgang Jäger, and MCLGerry:
    “Microwave spectroscopic investigation of the mixed rare gas van der Waals trimers Ne2–Kr and Ne2–Xe.”
    J. Chem. Phys. 100, 4171-4180 (1994).

    22) Wolfgang Jäger, Yunjie Xu, Nils Heineking, and Michael C.L. Gerry:
    “The microwave rotational spectrum of the van der Waals complex Kr–N2.”
    J. Chem. Phys. 99, 7510-7520 (1994).

    21) Kristine D. Hensel, Christian Styger, Wolfgang Jäger, Anthony J. Merer, and Michael C.L. Gerry:
    “Microwave spectra of metal chlorides using laser ablation.”
    J. Chem. Phys. 99, 3320-3328 (1993).

    20) Wolfgang Jäger, Yunjie Xu, and Michael C.L. Gerry:
    “Pure rotational spectra of the mixed rare gas van der Waals complexes Ne–Xe, Ar–Xe and Kr–Xe.”
    J. Chem. Phys. 99, 919-927 (1993).

    19) Christian Styger, Beth Gatehouse, Nils Heineking, Wolfgang Jäger, and Michael C.L. Gerry:
    “The 14N quadrupole coupling constants and 14N and 19F spin–rotation coupling constants of nitrosyl fluoride, FNO, and nitryl fluoride, FNO2.”
    J. Chem. Soc., Faraday Trans. 89, 1899-1902 (1993).

    18) Yunjie Xu, Wolfgang Jäger, Michael C.L. Gerry, and Ilona Merke:
    “The rotational spectrum of bromoacetonitrile, measured with stark modulated and microwave Fourier transform spectrometers.”
    J. Mol. Spectrosc. 160, 258-271 (1993).

    17) Teruhiko Ogata, Wolfgang Jäger, Irving Ozier, and Michael C.L. Gerry:
    “The microwave rotational spectrum of the Ar–CO dimer.”
    J. Chem. Phys. 98, 9399-9404 (1993).

    16) Wolfgang Jäger, Yunjie Xu, and Michael C.L. Gerry:
    “A microwave spectroscopic investigation of the weakly bound dimer carbon monoxide–chlorine, OCCl2.”
    J. Phys. Chem. 97, 3685-3689 (1993).

    15) Yunjie Xu, Wolfgang Jäger, Irving Ozier, and Michael C.L. Gerry:
    “Rotational spectrum, structure and chlorine nuclear quadrupole coupling constants of the van der Waals complex Ar–Cl2.”
    J. Chem. Phys. 98, 3726-3731 (1993).

    14) Nils Heineking, Wolfgang Jäger, and Michael C.L. Gerry:
    “Isotopic and vibrational satellites in the rotational spectrum of carbonyl chloride fluoride.”
    J. Mol. Spectrosc. 158, 69-81 (1993).

    13) Kristine D. Hensel, Wolfgang Jäger, Michael C.L. Gerry, and Ilona Merke:
    “The Cl nuclear quadrupole coupling tensor of dichlorosilane, SiH2Cl2.”
    J. Mol. Spectrosc. 158, 131-139 (1993).

    12) Yunjie Xu, Wolfgang Jäger, and Michael C.L. Gerry:
    “Pulsed molecular beam microwave Fourier transform spectroscopy of the van der Waals trimer Ar2–CO2.”
    J. Mol. Spectrosc. 157, 132-140 (1993).

    11) Nils Heineking, Wolfgang Jäger, and Michael C.L. Gerry:
    “Nitrogen nuclear quadrupole coupling constants and heavy atom substitution geometry of tert–butyl nitrite.”
    J. Mol. Spectrosc. 155, 403-412 (1992).

    10) Wolfgang Jäger and Michael C.L. Gerry:
    “The microwave spectrum of the van der Waals complex Ar–N2.”
    Chem. Phys. Lett. 196, 274-279 (1992).

    9) Wing Cheung Ho, Wolfgang Jäger, David T. Cramb, Irving Ozier, and Michael C.L. Gerry:
    “The A2Πu–X2Σg+ system of N2+: the (3,6) band of 14N15N+ and further measurements of the (2,5) band of 14N14N+.”
    J. Mol. Spectrosc. 153, 692-700 (1992).

    8) Yunjie Xu, Wolfgang Jäger, and Michael C.L. Gerry:
    “The rotational spectrum of the isotopically substituted van der Waals complex Ar–OCS, obtained using a pulsed beam microwave Fourier transform spectrometer.”
    J. Mol. Spectrosc. 151, 206-216 (1992).

    7) Volker Meyer, Wolfgang Jäger, Rudolf Schwarz, and Helmut Dreizler:
    “A microwave Fourier transform spectrometer in the range from 18 to 26.4 GHz with increased sensitivity using circular waveguides. Measurements of isotopomers of carbonylsulfide and of methane.”
    Z. Naturforsch. 46a, 445-449 (1991).

    6) Marek Kreglewski, Wolfgang Jäger, and Helmut Dreizler:
    “The rotational spectrum of methylamine–d3.”
    J. Mol. Spectrosc. 144, 334-343 (1991).

    5) Wolfgang Jäger, Helmut Krause, Heinrich Mäder, and Michael C.L. Gerry:
    “Rotational spectrum of 3–butynenitrile in the microwave and radiofrequency range using one– and two–dimensional Fourier transform techniques.”
    J. Mol. Spectrosc. 143, 50-60 (1991).

    4) Wolfgang Jäger, Jürgen Haeckel, Uwe Andresen, and Heinrich Mäder:
    “Two–dimensional Fourier transform spectroscopy in the microwave–radiofrequency range.”
    Mol. Phys. 68, 1287-1309 (1989).

    3) Wolfgang Jäger and Heinrich Mäder:
    “The microwave spectrum of 5–methylthiazole: methyl internal rotation, 14N nuclear quadrupole coupling and electric dipole moment.”
    J. Mol. Struct. 190, 295-305 (1988).

    2) Wolfgang Jäger and Heinrich Mäder:
    “The microwave spectrum of 4–methylthiazole: methyl internal rotation, 14N nuclear quadrupole coupling and electric dipole moment.”
    Z. Naturforsch. 42a, 1505-1409 (1987).

    1) Wolfgang Jäger, Helmut Dreizler, Heinrich Mäder, J. Sheridan, and C.T. Walls:
    “The microwave spectrum of 4–methylisoxazole: 14N nuclear quadrupole coupling, methyl internal rotation and electric dipole moment.”
    Z. Naturforsch. 42a, 501-506 (1987).