Publications

1999

X. Zhuang, P. B. Miranda, D. Kim and Y. R. Shen, "Mapping molecular orientation and conformation at interfaces by surface nonlinear optics", Physical Review B, 59, 12632-12640, (1999).

 

X. Wei, X. W. Zhuang, S. C. Hong, T. Goto and Y. R. Shen, "Sum-frequency vibrational spectroscopic study of a rubbed polymer surface", Physical Review Letters, 82, 4256-4259, (1999).

 

X. C. Su, K. Y. Kung, J. Lahtinen, Y. R. Shen and G. A. Somorjai, "1,3- and 1,4-cyclohexadiene reaction intermediates in cyclohexene hydrogenation and dehydrogenation on Pt(111) crystal surface: a combined reaction kinetics and surface vibrational spectroscopy study using sum frequency generation", Journal of Molecular Catalysis a-Chemical, 141, 9-19, (1999).

 

Y. R. Shen, "Surface contribution versus bulk contribution in surface nonlinear optical spectroscopy", Applied Physics B-Lasers and Optics, 68, 295-300, (1999).

 

T. Z. Qian, X. W. Zhuang and Y. R. Shen, "Surface-monolayer-induced bulk alignment of liquid crystals: From nematic to smectic-A phase", Physical Review E, 59, 1873-1879, (1999).

 

P. B. Miranda and Y. R. Shen, "Liquid interfaces: A study by sum-frequency vibrational spectroscopy", Journal of Physical Chemistry B, 103, 3292-3307, (1999).

 

J. A. McGuire, W. Beck, X. Wei and Y. R. Shen, "Fourier-transform sum-frequency surface vibrational spectroscopy with femtosecond pulses", Optics Letters, 24, 1877-1879, (1999).

 

M. Y. Mao, P. B. Miranda, D. S. Kim and Y. R. Shen, "Characterization of hydrogen-terminated Si(111) surfaces by sum-frequency surface vibrational spectroscopy", Applied Physics Letters, 75, 3357-3359, (1999).

 

D. Kim and Y. R. Shen, "Study of wet treatment of polyimide by sum-frequency vibrational spectroscopy", Applied Physics Letters, 74, 3314-3316, (1999).

 

D. H. Gracias, D. Zhang, L. Lianos, W. Ibach, Y. R. Shen and G. A. Somorjai, "A study of the glass transition of polypropylene surfaces by sum-frequency vibrational spectroscopy and scanning force microscopy", Chemical Physics, 245, 277-284, (1999).

 

D. H. Gracias, Z. Chen, Y. R. Shen and G. A. Somorjai, "Molecular characterization of polymer and polymer blend surfaces. Combined sum frequency generation surface vibrational spectroscopy and scanning force microscopy studies", Accounts of Chemical Research, 32, 930-940, (1999).

 

Z. Chen, R. Ward, Y. Tian, A. S. Eppler, Y. R. Shen and G. A. Somorjai, "Surface composition of biopolymer blends Biospan-SP/Phenoxy and Biospan-F/Phenoxy observed with SFG, XPS, and contact angle goniometry", Journal of Physical Chemistry B, 103, 2935-2942, (1999).

 

S. Baldelli, N. Markovic, P. Ross, Y. R. Shen and G. Somorjai, "Sum frequency generation of CO on (111) and polycrystalline platinum electrode surfaces: Evidence for SFG invisible surface CO", Journal of Physical Chemistry B, 103, 8920-8925, (1999).

 

1998

D. Zhang, D. H. Gracias, R. Ward, M. Gauckler, Y. Tian, Y. R. Shen and G. A. Somorjai, "Surface studies of polymer blends by sum frequency vibrational spectroscopy, atomic force microscopy, and contact angle goniometry", Journal of Physical Chemistry B, 102, 6225-6230, (1998).

 

X. C. Su, L. Lianos, Y. R. Shen and G. A. Somorjai, "Surface-induced ferroelectric ice on Pt(111)", Physical Review Letters, 80, 1533-1536, (1998).

 

Y. R. Shen, "1998 Frank Isakson prize address - Sum frequency generation for vibrational spectroscopy: Applications to water interfaces and films of water and ice", Solid State Communications, 108, 399-406, (1998).

 

P. B. Miranda, Q. Du and Y. R. Shen, "Interaction of water with a fatty acid Langmuir film", Chemical Physics Letters, 286, 1-8, (1998).

 

P. B. Miranda, V. Pflumio, H. Saijo and Y. R. Shen, "Surfactant monolayers at solid-liquid interfaces: conformation and interaction", Thin Solid Films, 329, 161-165, (1998).

 

P. B. Miranda, V. Pflumio, H. Saijo and Y. R. Shen, "Chain-chain interaction between surfactant monolayers and alkanes or alcohols at solid/liquid interfaces", Journal of the American Chemical Society, 120, 12092-12099, (1998).

 

P. B. Miranda, L. Xu, Y. R. Shen and M. Salmeron, "Icelike water monolayer adsorbed on mica at room temperature", Physical Review Letters, 81, 5876-5879, (1998).

 

D. Kim, X. Zhuang, P. Miranda and Y. R. Shen, "Determination of orientation of amphiphilic molecules at the air-water interface by nonlinear optics", Korea Polymer Journal, 6, 374-380, (1998).

 

J. J. Ge, G. Xue, F. M. Li, K. W. McCreight, S. Y. Wang, F. W. Harris, S. Z. D. Cheng, X. W. Zhuang, S. C. Hong and Y. R. Shen, "Surface studies of polyimide thin films via surface-enhanced Raman scattering and second harmonic generation", Macromolecular Rapid Communications, 19, 619-623, (1998).

 

J. Diener, Y. R. Shen, D. I. Kovalev, G. Polisski and F. Koch, "Two-photon-excited photoluminescence from porous silicon", Physical Review B, 58, 12629-12632, (1998).

 

P. S. Cremer, X. C. Su, G. A. Somorjai and Y. R. Shen, "High pressure catalytic processes studied by infrared-visible sum frequency generation", Journal of Molecular Catalysis a-Chemical, 131, 225-241, (1998).

 

1997

D. Zhang, R. S. Ward, Y. R. Shen and G. A. Somorjai, "Environment-induced surface structural changes of a polymer: An in situ IR plus visible sum-frequency spectroscopic study", Journal of Physical Chemistry B, 101, 9060-9064, (1997).

 

D. Zhang, Y. R. Shen and G. A. Somorjai, "Studies of surface structures and compositions of polyethylene and polypropylene by IR plus visible sum frequency vibrational spectroscopy", Chemical Physics Letters, 281, 394-400, (1997).

 

X. D. Xiao, Y. L. Xie, C. Jakobsen and Y. R. Shen, "Effects of surface impurities on surface diffusion of CO on Ni(110)", Physical Review B, 56, 12529-12538, (1997).

 

X. C. Su, P. S. Cremer, Y. R. Shen and G. A. Somorjai, "High-pressure CO oxidation on Pt(111) monitored with infrared-visible sum frequency generation (SFG)", Journal of the American Chemical Society, 119, 3994-4000, (1997).

 

X. C. Su, Y. R. Shen and G. A. Somorjai, "The surface chemistry of 1,3-cyclohexadiene and 1,4-cyclohexadiene on Pt(111) studied by surface vibrational spectroscopy with sum frequency generation", Chemical Physics Letters, 280, 302-307, (1997).

 

Y. R. Shen, "Wave mixing spectroscopy for surface studies", Solid State Communications, 102, 221-229, (1997).

 

Y. R. Shen, "Optical physics - Solitons made simple", Science, 276, 1520-1520, (1997).

 

C. Raduge, V. Pflumio and Y. R. Shen, "Surface vibrational spectroscopy of sulfuric acid-water mixtures at the liquid-vapor interface", Chemical Physics Letters, 274, 140-144, (1997).

 

R. Muenster, M. Jarasch, X. Zhuang and Y. R. Shen, "Dye-induced enhancement of optical nonlinearity in liquids and liquid crystals", Physical Review Letters, 78, 42-45, (1997).

 

P. B. Miranda, V. Pflumio, H. Saijo and Y. R. Shen, "Conformation of surfactant monolayers at solid/liquid interfaces", Chemical Physics Letters, 264, 387-392, (1997).

 

D. Kim, I. H. Libon, C. Voelkmann, Y. R. Shen and V. PetrovaKoch, "Multiphoton photoluminescence from GaN with tunable picosecond pulses", Physical Review B, 55, R4907-R4909, (1997).

 

D. Kim, I. H. Libon, C. Voelkmann, V. PetrovaKoch and Y. R. Shen, "Multiphoton excitations in porous silicon", Materials Science and Engineering B-Solid State Materials for Advanced Technology, 48, 103-107, (1997).

 

D. Kim, C. S. Mullin and Y. R. Shen, "Second-harmonic generation in atomic vapor with picosecond laser pulses", Journal of the Optical Society of America B-Optical Physics, 14, 2530-2542, (1997).

 

P. S. Cremer, X. C. Su, Y. R. Shen and G. A. Somorjai, "Temperature-dependent rearrangements and reactions of acetylene adsorbed on Pt(111) monitored in the range 125-381 K by sum frequency generation", Journal of Physical Chemistry B, 101, 6474-6478, (1997).

 

1996

X. Zhuang and Y. R. Shen, "The application of nonlinear optics to the study of polymers at interfaces", Trends in Polymer Science, 4, 258-264, (1996).

 

X. C. Su, P. S. Cremer, Y. R. Shen and G. A. Somorjai, "Pressure dependence (10(-10)-700 Torr) of the vibrational spectra of adsorbed CO on Pt(111) studied by sum frequency generation", Physical Review Letters, 77, 3858-3860, (1996).

 

X. C. Su, J. Jensen, M. X. Yang, M. B. Salmeron, Y. R. Shen and G. A. Somorjai, "SFG and STM studies of the Pt(111) crystal face at atmospheric CO and oxygen pressures: Preparation of platinum nanocluster arrays", Faraday Discussions, 263-274, (1996).

 

Y. R. Shen, "A few selected applications of surface nonlinear optical spectroscopy", Proceedings of the National Academy of Sciences of the United States of America, 93, 12104-12111, (1996).

 

A. LeCalvez, S. Montant, E. Freysz, A. Ducasse, X. W. Zhuang and Y. R. Shen, "Ultrashort orientational dynamics of liquid crystals in the smectic-A phase", Chemical Physics Letters, 258, 620-625, (1996).

 

X. F. Jin, M. Y. Mao, S. Ko and Y. R. Shen, "Adsorption and desorption kinetics of CO on Cu(110) studied by optical differential reflectance", Physical Review B, 54, 7701-7704, (1996).

 

P. S. Cremer, X. C. Su, Y. R. Shen and G. A. Somorjai, "Ethylene hydrogenation on Pt(111) monitored in situ at high pressures using sum frequency generation", Journal of the American Chemical Society, 118, 2942-2949, (1996).

 

P. S. Cremer, X. C. Su, Y. R. Shen and G. A. Somorjai, "The first measurement of an absolute surface concentration of reaction intermediates in ethylene hydrogenation", Catalysis Letters, 40, 143-145, (1996).

 

P. S. Cremer, X. C. Su, Y. R. Shen and G. A. Somorjai, "Hydrogenation and dehydrogenation of propylene on Pt(111) studied by sum frequency generation from UHV to atmospheric pressure", Journal of Physical Chemistry, 100, 16302-16309, (1996).

 

P. S. Cremer, X. C. Su, Y. R. Shen and G. Somorjai, "The hydrogenation and dehydrogenation of isobutene on Pt(111) monitored by IR-visible sum frequency generation and gas chromotography", Journal of the Chemical Society-Faraday Transactions, 92, 4717-4722, (1996).

 

R. P. Chin, J. Y. Huang, Y. R. Shen, T. J. Chuang and H. Seki, "Interactions of hydrogen and methyl radicals with diamond C(111) studied by sum-frequency vibrational spectroscopy", Physical Review B, 54, 8243-8251, (1996).

 

1995

X. Zhuang, D. Wilk, L. Marrucci and Y. R. Shen, "Orientation of Amphiphilic Molecules on Polar Substrates", Physical Review Letters, 75, 2144-2147, (1995).

 

X. Zhuang, H. S. Lackritz and Y. R. Shen, "Photo-Isomerization of Polymer Monolayers and Multilayers on Water", Chemical Physics Letters, 246, 279-284, (1995).

 

X. Zhuang, L. Marrucci, D. Johannsmann and Y. R. Shen, "Dependence of liquid crystal bulk alignment on its surface monolayer", Molecular Crystals and Liquid Crystals Science and Technology Section a-Molecular Crystals and Liquid Crystals, 262, 35-43, (1995).

 

X. D. Xiao, Y. L. Xie, C. Jakobsen, H. Galloway, M. Salmeron and Y. R. Shen, "Impurity Effect on Surface-Diffusion - Co/S/Ni(110)", Physical Review Letters, 74, 3860-3863, (1995).

 

D. Wilk, D. Johannsmann, C. Stanners and Y. R. Shen, "2nd-Harmonic Generation from C-60 Thin-Films at 1.064-Mu-M", Physical Review B, 51, 10057-10067, (1995).

 

C. D. Stanners, Q. Du, R. P. Chin, P. Cremer, G. A. Somorjai and Y. R. Shen, "Polar Ordering at the Liquid-Vapor Interface of N-Alcohols (C-1-C-8)", Chemical Physics Letters, 232, 407-413, (1995).

 

C. D. Stanners, P. S. Cremer, D. E. Wilk, Y. R. Shen and G. A. Somorjai, "Growth of Cu Films on Adsorbate-Covered Pt(111)", Surface Science, 334, 95-104, (1995).

 

G. A. Sefler, Q. Du, P. B. Miranda and Y. R. Shen, "Surface Crystallization of Liquid N-Alkanes and Alcohol Monolayers Studied by Surface Vibrational Spectroscopy", Chemical Physics Letters, 235, 347-354, (1995).

 

C. S. Mullin, D. Kim, M. B. Feller and Y. R. Shen, "Picosecond Studies of Optical 2nd-Harmonic Generation in Atomic Vapor", Physical Review Letters, 74, 2678-2681, (1995).

 

D. Kim, C. S. Mullin and Y. R. Shen, "Theory of Resonant 2nd-Harmonic Generation in Atomic Vapor", Applied Physics B-Lasers and Optics, 60, S215-S220, (1995).

 

Q. Du, X. D. Xiao, D. Charych, F. Wolf, P. Frantz, Y. R. Shen and M. Salmeron, "Nonlinear-Optical Studies of Monomolecular Films under Pressure", Physical Review B, 51, 7456-7463, (1995).

 

P. Cremer, C. Stanners, J. W. Niemantsverdriet, Y. R. Shen and G. Somorjai, "The Conversion of Di-Sigma Bonded Ethylene to Ethylidyne on Pt(111) Monitored with Sum-Frequency Generation - Evidence for an Ethylidene (or Ethyl) Intermediate", Surface Science, 328, 111-118, (1995).

 

P. S. Cremer, B. J. McIntyre, M. Salmeron, Y. R. Shen and G. A. Somorjai, "Monitoring Surfaces on the Molecular-Level During Catalytic Reactions at High-Pressure by Sum-Frequency Generation Vibrational Spectroscopy and Scanning-Tunneling-Microscopy", Catalysis Letters, 34, 11-18, (1995).

 

R. P. Chin, X. Blase, Y. R. Shen and S. G. Louie, "Anharmonicity and Lifetime of the Ch Stretch Mode on Diamond H/C(111)-(1x1)", Europhysics Letters, 30, 399-404, (1995).

 

R. P. Chin, J. Y. Huang, Y. R. Shen, T. J. Chuang and H. Seki, "Interaction of Atomic-Hydrogen with the Diamond C(111) Surface Studied by Infrared-Visible Sum-Frequency-Generation Spectroscopy", Physical Review B, 52, 5985-5995, (1995).

 

R. P. Chin, Y. R. Shen and V. Petrovakoch, "Photoluminescence from Porous Silicon by Infrared Multiphoton Excitation", Science, 270, 776-778, (1995).

 

Year 1994

X. W. Zhuang, L. Marrucci and Y. R. Shen, "Surface-Monolayer-Induced Bulk Alignment of Liquid-Crystals", Physical Review Letters, 73, 1513-1516, (1994).

 

Y. R. Shen, "Surfaces Probed by Nonlinear Optics", Surface Science, 300, 551-562, (1994). Y. R. Shen, "Nonlinear-Optical Studies of Polymer Interfaces", International Journal of Nonlinear Optical Physics, 3, 459-468, (1994).

 

Y. R. Shen, "Nonlinear-Optical Studies of Surfaces", Applied Physics a-Materials Science & Processing, 59, 541-543, (1994).

 

M. W. Kim, T. P. Russell, T. Moses, W. Chen and Y. R. Shen, "Diblock Copolymer Adsorption onto a Solid-Surface as Revealed by Evanescent-Wave Ellipsometry", Macromolecules, 27, 7490-7491, (1994).

 

J. Y. Huang and Y. R. Shen, "Theory of Doubly Resonant Infrared-Visible Sum-Frequency and Difference-Frequency-Generation from Adsorbed Molecules", Physical Review A, 49, 3973-3981, (1994).

 

E. Freysz, Q. Du and Y. R. Shen, "Sum-Frequency Vibrationnal Spectroscopy of Water-Molecules at Interfaces", Annales De Physique, 19, 95-102, (1994).

 

Q. Du, E. Freysz and Y. R. Shen, "Vibrational-Spectra of Water-Molecules at Quartz Water Interfaces", Physical Review Letters, 72, 238-241, (1994).

 

Q. Du, E. Freysz and Y. R. Shen, "Surface Vibrational Spectroscopic Studies of Hydrogen-Bonding and Hydrophobicity", Science, 264, 826-828, (1994).

 

1993

H. Zhou, J. Zhang, T. Chen, C. Chen and Y. R. Shen, "Picosecond, Narrow-Band, Widely Tunable Optical Parametric Oscillator Using a Temperature-Tuned Lithium Borate Crystal", Applied Physics Letters, 62, 1457-1459, (1993).

 

J. Y. Zhang, J. Y. Huang, Y. R. Shen and C. Chen, "Optical Parametric Generation and Amplification in Barium Borate and Lithium Triborate Crystals", Journal of the Optical Society of America B-Optical Physics, 10, 1758-1764, (1993).

 

X. D. Xiao, Y. L. Xie and Y. R. Shen, "Coverage Dependence of Anisotropic Surface-Diffusion - Co/Ni(110)", Physical Review B, 48, 17452-17462, (1993).

 

D. E. Wilk, C. D. Stanners, Y. R. Shen and G. A. Somorjai, "Structure and Thermal-Decomposition of Para-Xylene and Ortho-Xylene on Pt(111) - a Hreels, Leed and Tpd Study", Surface Science, 280, 298-312, (1993).

 

H. Seki, T. Yamada, T. J. Chuang, R. P. Chin, J. Y. Huang and Y. R. Shen, "Investigation of Diamond C(111) (2x1) Surface-Exposed to Hydrogen and Hydrocarbon Species Using 2nd-Harmonic Generation and Sum-Frequency Generation", Diamond and Related Materials, 2, 567-572, (1993).

 

J. P. Obrien, T. Moses, W. Chen, E. Freysz, Y. Ouchi and Y. R. Shen, "Reorientation Dynamics of Ferroelectric Liquid-Crystal Molecules near the Smectic-a Smectic-C-Asterisk Transition", Physical Review E, 47, R2269-R2272, (1993).

 

T. Moses, Y. Ouchi, W. Chen and Y. R. Shen, "Pretransitional Surface Phenomena in Ferroelectric Liquid-Crystals", Molecular Crystals and Liquid Crystals, 225, 55-65, (1993).

 

D. Johannsmann, H. T. Zhou, P. Sonderkaer, H. Wierenga, B. O. Myrvold and Y. R. Shen, "Correlation between Surface and Bulk Orientations of Liquid-Crystals on Rubbed Polymer Surface - Odd-Even Effects of Polymer Spacer Units", Physical Review E, 48, 1889-1896, (1993).

 

B. Jerome, J. Obrien, Y. Ouchi, C. Stanners and Y. R. Shen, "Bulk Reorientation Driven by Orientational Transition in a Liquid-Crystal Monolayer", Physical Review Letters, 71, 758-761, (1993).

 

B. Jerome and Y. R. Shen, "Anchoring of Nematic Liquid-Crystals on Mica in the Presence of Volatile Molecules", Physical Review E, 48, 4556-4574, (1993).

 

Q. Du, R. Superfine, E. Freysz and Y. R. Shen, "Vibrational Spectroscopy of Water at the Vapor Water Interface", Physical Review Letters, 70, 2313-2316, (1993).

 

Year 1992

J. Y. Zhang, Y. R. Shen and D. S. Soane, "Study of Dynamics of Diffusion and Cluster Formation of Copper Deposition on Polyimide by Optical 2nd-Harmonic Generation", Journal of Applied Physics, 71, 2655-2662, (1992).

 

X. D. Xiao, Y. L. Xie and Y. R. Shen, "Surface-Diffusion Probed by Linear Optical Diffraction", Surface Science, 271, 295-298, (1992).

 

X. D. Xiao, X. D. Zhu, W. Daum and Y. R. Shen, "Optical 2nd-Harmonic Diffraction Study of Anisotropic Surface-Diffusion - Co on Ni(110)", Physical Review B, 46, 9732-9743, (1992).

 

P. Sheng, B. Z. Li, M. Y. Zhou, T. Moses and Y. R. Shen, "Disordered-Surface-Layer Transition in Nematic Liquid-Crystals", Physical Review A, 46, 946-950, (1992).

 

Y. R. Shen, "Correspondence between Doppler-Free Spectroscopies and Photon-Echoes", Physical Review A, 45, 446-449, (1992).

 

Y. R. Shen, "Surface Nonlinear Optical Spectroscopy", Solid State Communications, 84, 171-172, (1992).

 

Y. Ouchi, M. B. Feller, T. Moses and Y. R. Shen, "Surface Memory Effect at the Liquid-Crystal-Polymer Interface", Physical Review Letters, 68, 3040-3043, (1992).

 

T. Moses, Y. R. Shen, P. Sheng and B. Z. Li, "Optical Studies of Pretransitional Surface Ordering and Disordering in Liquid-Crystals", Molecular Crystals and Liquid Crystals, 222, 85-92, (1992).

 

R. P. Chin, J. Y. Huang, Y. R. Shen, T. J. Chuang, H. Seki and M. Buck, "Vibrational-Spectra of Hydrogen on Diamond C(111)-(1x1)", Physical Review B, 45, 1522-1524, (1992).

 

W. Chen, Y. Ouchi, T. Moses, Y. R. Shen and K. H. Yang, "Surface Electroclinic Effect on the Layer Structure of a Ferroelectric Liquid-Crystal", Physical Review Letters, 68, 1547-1550, (1992).

 

1991

X. D. Zhu, W. Daum, X. D. Xiao, R. Chin and Y. R. Shen, "Coverage Dependence of Surface Optical 2nd-Harmonic Generation from Co/Ni(110) - Investigation with a Nonlinear-Interference Technique", Physical Review B, 43, 11571-11580, (1991).

 

J. Y. Zhang, J. Y. Huang, Y. R. Shen, C. T. Chen and B. C. Wu, "Picosecond Optical Parametric Amplification in Lithium Triborate", Applied Physics Letters, 58, 213-215, (1991).

 

J. Y. Zhang, Y. R. Shen, D. S. Soane and S. C. Freilich, "Study of Diffusion and Cluster Formation of Copper Deposition on Polyimide by Optical 2nd-Harmonic Generation", Applied Physics Letters, 59, 1305-1307, (1991).

 

X. D. Xiao, V. Vogel, Y. R. Shen and G. Marowsky, "Molecular Monolayers of Charge-Transfer Complexes - Protonation and Aggregation Studied by 2nd Harmonic-Generation", Journal of Chemical Physics, 94, 2315-2323, (1991).

 

X. D. Xiao, X. D. Zhu, W. Daum and Y. R. Shen, "Anisotropic Surface-Diffusion of Co on Ni(110)", Physical Review Letters, 66, 2352-2355, (1991).

 

V. Vogel, C. S. Mullin and Y. R. Shen, "Probing the Structure of the Adsorption Layer of Soluble Amphiphilic Molecules at the Air-Water-Interface", Langmuir, 7, 1222-1224, (1991).

 

V. Vogel and Y. R. Shen, "Air Liquid Interfaces and Adsorbed Molecular Monolayers Studied with Nonlinear Optical Techniques", Annual Review of Materials Science, 21, 515-534, (1991).

 

V. Vogel, C. S. Mullin, Y. R. Shen and M. W. Kim, "Surface-Density of Soluble Surfactants at the Air-Water-Interface - Adsorption Equilibrium Studied by 2nd Harmonic-Generation", Journal of Chemical Physics, 95, 4620-4625, (1991).

 

R. Superfine, J. Y. Huang and Y. R. Shen, "Nonlinear Optical Studies of the Pure Liquid Vapor Interface - Vibrational-Spectra and Polar Ordering", Physical Review Letters, 66, 1066-1069, (1991).

 

Y. R. Shen, W. Chen, M. B. Feller, J. Y. Huang and R. Superfine, "Probing the Mechanisms for Surface-Induced Alignment of Liquid-Crystals", Molecular Crystals and Liquid Crystals, 207, 77-85, (1991).

 

T. Moses and Y. R. Shen, "Pretransitional Surface Ordering and Disordering of a Liquid-Crystal", Physical Review Letters, 67, 2033-2036, (1991).

 

Y. Mitsuda, T. Yamada, T. J. Chuang, H. Seki, R. P. Chin, J. Y. Huang and Y. R. Shen, "Interactions of Deuterium and Hydrocarbon Species with the Diamond C(111) Surface", Surface Science, 257, L633-L641, (1991).

 

S. J. Lin, J. Y. Huang, J. W. Ling, C. T. Chen and Y. R. Shen, "Optical Parametric Amplification in a Lithium Triborate Crystal Tunable from 0.65 to 2.5-Mu", Applied Physics Letters, 59, 2805-2807, (1991).

 

M. W. Kim, D. G. Peiffer, W. Chen, H. Hsiung, T. Rasing and Y. R. Shen, "Adsorption Phenomenon of Lightly Sulfonated Polymers on a Solid Substrate Surface", Macromolecules, 24, 319-321, (1991).

 

M. W. Kim, L. J. Fetters, W. Chen and Y. R. Shen, "End-Functionalized Polymer Adsorption Study by Evanescent Ellipsometry", Macromolecules, 24, 4216-4217, (1991).

 

J. Y. Huang, Y. R. Shen, C. T. Chen and B. C. Wu, "Noncritically Phase-Matched 2nd-Harmonic Generation and Optical Parametric Amplification in a Lithium Triborate Crystal", Applied Physics Letters, 58, 1579-1581, (1991).

 

M. B. Feller, W. Chen and Y. R. Shen, "Investigation of Surface-Induced Alignment of Liquid-Crystal Molecules by Optical 2nd-Harmonic Generation", Physical Review A, 43, 6778-6792, (1991).

 

G. Abbate, P. Maddalena, L. Marrucci, E. Santamato and Y. R. Shen, "Photodynamical Effects Induced by Laser-Radiation in a Nematic Liquid-Crystal", Molecular Crystals and Liquid Crystals, 198, 225-230, (1991).

 

1990

X. D. Zhu and Y. R. Shen, "Multipolar Contributions to Optical 2nd-Harmonic Generation in Isotropic Fluids", Physical Review A, 41, 4549-4549, (1990).

 

X. D. Zhu and Y. R. Shen, "Surface Photon-Echoes in the Infrared Range", Applied Physics B-Photophysics and Laser Chemistry, 50, 535-539, (1990).

 

R. Superfine, J. Y. Huang and Y. R. Shen, "Experimental-Determination of the Sign of Molecular Dipole-Moment Derivatives - an Infrared Visible Sum Frequency Generation Absolute Phase Measurement Study", Chemical Physics Letters, 172, 303-306, (1990).

 

R. Superfine, J. Y. Huang and Y. R. Shen, "Phase Measurement for Surface Infrared Visible Sum-Frequency Generation", Optics Letters, 15, 1276-1278, (1990).

 

Y. R. Shen, "Nonlinear-Interaction of Surface-Polaritons", Physics Reports-Review Section of Physics Letters, 194, 303-308, (1990).

 

E. Santamato, G. Abbate, P. Maddalena, L. Marrucci and Y. R. Shen, "Laser-Induced Nonlinear Dynamics in a Nematic Liquid-Crystal Film", Physical Review Letters, 64, 1377-1380, (1990).

 

E. Santamato, G. Abbate, P. Maddalena, L. Marrucci and Y. R. Shen, "Undamped Nonlinear Oscillations of the Director of a Nematic Liquid-Crystal Induced by an Elliptically Polarized Laser-Beam", Molecular Crystals and Liquid Crystals, 179, 189-200, (1990).

 

H. L. Ong, R. B. Meyer, A. J. Hurd, A. J. Karn, S. M. Arakelian, Y. R. Shen, P. N. Sanda, D. B. Dove, S. A. Jansen and R. Hoffmann, "Progress in Linear Optics, Nonlinear Optics and Surface Alignment of Liquid-Crystals", Molecular Crystals and Liquid Crystals, 179, 365-375, (1990).

 

A. J. Karn, Y. R. Shen and E. Santamato, "Bistability and Switching in a Nematic Cell Induced by Rotation of an Applied Magnetic-Field", Physical Review A, 41, 4510-4512, (1990).

 

A. J. Karn and Y. R. Shen, "Light-Induced Molecular-Reorientation in a Freestanding Smectic-C Liquid-Crystal Film", Physical Review A, 42, 2184-2190, (1990).

 

J. Y. Huang, R. Superfine and Y. R. Shen, "Nonlinear Spectroscopic Study of Coadsorbed Liquid-Crystal and Surfactant Monolayers - Conformation and Interaction", Physical Review A, 42, 3660-3663, (1990).

 

J. Y. Huang, J. Y. Zhang, Y. R. Shen, C. Chen and B. Wu, "High-Power, Widely Tunable, Picosecond Coherent Source from Optical Parametric Amplification in Barium Borate", Applied Physics Letters, 57, 1961-1963, (1990).

 

W. Chen, L. J. Martinezmiranda, H. Hsiung and Y. R. Shen, "Surface-Induced Ordering in a Homologous Series of Liquid-Crystals - Orientational Wetting", Molecular Crystals and Liquid Crystals, 179, 419-424, (1990).