Publications

2009

T. T. Tang, Y. Zhang, C. H. Park, B. Geng, C. Girit, Z. Hao, M. C. Martin, A. Zettl, M. F. Crommie, S. G. Louie, Y. R. Shen, F. Wang, "A tunable phonon-exciton Fano system in bilayer graphene", Nat. Nanotech., 1, 2009.

 

C. S. Tian and Y. R. Shen, "Structure and Charging of Hydrophobic Material/Water Interfaces Studied by Phase-Sensitive Sum-Frequency Vibrational Spectroscopy", PNAS, 106, 15148, 2009.

 

D. J. Cho, W. Wu, E. Ponizovskaya, P. Chaturvedi, A. M. Bratkovksy, S. Y. Wang, X. Zhang, F. Wang, Y R. Shen, "Ultrafast Modulation of Optical Metamaterials", Optics Express, 17, 17652, 2009.

 

W. Wu, E. Ponizovskaya, E. Kim, D. J. Cho, A. Bratkovksy, Z. Yu, Q. Xia, X. Li, Y. R. Shen, S. Y. Wang, R. S. Williams, "Geometrical Dependence of Optical Negative Index Meta-materials at 1.55um", Appl. Phys. A, 95, 1119, 2009.

 

Y. Zhang, T. T. Tang, C. Girit, Z. Hao, M. C. Martin, A. Zettl, M. F. Crommie, Y. R. Shen, F. Wang, “Direct Observation of a Widely Tunable Bandgap in Bilayer Graphene”, Nature, 459, 820, 2009.

 

C. Chen, W. Liu, P. Pagliusi, and Y. R. Shen, "Sum-Frequency Vibrational Spectroscopy Study of Photoirradiated Polymer Surfaces", Macromolecules, 42, 2122, 2009.

 

C. S. Tian and Y. R. Shen, “Isotopic Dilution Study of the Water/Vapor Interface by Phase-Sensitive Sum-Frequency Vibrational Spectroscopy”, J Am. Chem. Soc., 131, 2790, 2009.

 

C. S. Tian and Y. R. Shen, “Sum-frequency Vibrational Spectroscopic Studies of Water/Vapor Interfaces”, Chem. Phys. Lett., 470, 1, 2009.

 

L. Zhang, S. Singh, C. S. Tian, Y. R. Shen, Y. Wu, M. A. Shannon, C. J. Brinker, “Nanoporous silica-water interfaces studied by sum-frequency vibrational spectroscopy”, J. Chem. Phys., 130, 154702, 2009.

 

2008

C. S. Tian and Y. R. Shen, Comment on "Vibrational Response of Hydrogen-Bonded Interfacial Water is Dominated by Intramolecular Coupling'', Phys. Rev. Lett., 101, 139401, 2008.

 

C. S. Tian, N. Ji, G. A. Waychunas, Y. R. Shen, “Interfacial structures of acidic and basic aqueous solutions”, J Am. Chem. Soc., 130, 13033, 2008.

 

L. Zhang, C. S. Tian, G. A. Waychunas, Y. R. Shen, “Structures and charging of alpha-alumina (0001)/water interfaces studied by sum-frequency vibrational spectroscopy”, J Am. Chem. Soc., 130, 7686, 2008.

 

G. A. Waychunas, S. Ghose, L. Zhang, C. S. Tian, Y. R. Shen, “ Water structure on mineral surfaces: Comparisons between quartz, corundum and goethite”, GEOCHIMICA ET COSMOCHIMICA ACTA 72, A1010, 2008.

 

D. J. Cho, F. Wang, X. Zhang, Y. R. Shen , “Contribution of the Electric Quadrupole Resonance in Optical Metamaterials”, Physical Review B (Rapid), 78, 121101, 2008.

 

E. Kim, F. Wang, W. Wu, Z. Yu, Y. R. Shen , “Nonlinear Spectroscopy of Photonic Metamaterials,” Physical Review B, 78, 113102, 2008.

 

W. Liu and Y. R. Shen, "Sum-Frequency Phonon Spectroscopy on alpha-Quartz", Phys. Rev. B, 78, 024302, 2008.

 

W. Liu and Y. R. Shen, "Surface Vibrational Modes of alpha-Quartz(0001) Probed by Sum-Frequency Spectroscopy", Phys. Rev. Lett., 101, 016101 2008.

 

F. Wang, Y. Zhang, C. S. Tian, C. Girit, A. Zettl, M.l Crommie, Y. R. Shen , “Gate-Variable Optical Transitions in Graphene,” Science, 2008.

 

N. Ji, V. Ostroverkhov, C.S. Tian, Y.R. Shen, "Characterization of Vibrational Resonances of Water-Vapor Interfaces by Phase-Sensitive Sum-Frequency Spectroscopy", Physical Review Letters 100, 096102, 2008.

 

R. Chandrasekharan, L. Zhang, V. Ostroverkhov, S. Prakash, Y. Wu, Y. R. Shen, M. A. Shannon, "High-Temperature Hydroxylation of Alumina Crystalline Surfaces", Surface Science, 602, 146, 2008.

 

2007

F. Wang, D. J. Cho, B. Kessler, J. Deslippe, P. J. Schuck, S. G. Louie, A. Zettl, T. F. Heinz, Y. R. Shen, “Observation of Excitons in One-Dimensional Metallic Single-Walled Carbon Nanotubes”, Physical Review Letters, 99, 227401, 2007.

 

Thai V. Truong, Y. R. Shen, “Resonance-Enhanced Optical Reorientation of Molecules in Liquids via Intermolecular Interaction”, Physical Review Letters, Vol. 99, 187802 (2007).

 

Thai V. Truong, Chao-Yuan Chen, Nelson V. Tabiryan, Y. R. Shen, “Phase Transition Induced by Two-Photon Absorption in Azobenzene Liquid Crystals”, Journal of the Optical Society of America B, Vol 24, 2623 (2007).

 

E.M. Kim, Y.R. Shen, W. Wu, E. Ponizovskaya Y. Liu,Z. Yu, A. Bratkovski, S.Y. Wang, R. S. Williams, “Modulation of negative index metamaterials in the near IR-range”, Applied Physics Letters, 91, 173105, 2007.

 

E.M. Kim, W. Wu, E. Ponizovskaya Y. Liu,Z. Yu, A. Bratkovski, N. Fang, X. Zhang, Y.R. Shen, S.Y. Wang, "Optical Metamaterials at Near and Mid-IR Range Fabricated By Nanoimprint Lithography", Applied Physics A Materials Science & Processing, 87, 143, 2007.

 

W. Wu, Y. Liu, E.M. Kim, Z. Yu, N. Fang, X. Zhang, Y.R. Shen, S.Y. Wang, "Midinfrared metamaterials fabricated by nanoimprint lithography", App. Phys. Lett., 90, 063107, 2007.

 

Luning Zhang, Weitao Liu, D. Cahill, and Y. R. Shen, "Competitive Molecular Adsorption at Liquid/Solid Interfaces: A Study by Sum-Frequency Vibrational Spectroscopy" J. Phys. Chem. C111, 2069-76 (2007).

 

F. Wang, W. T. Liu, Y. Wu, M. Y. Sfeir, L. M. Huang, J. Hone, S. O’Brien, L. E. Brus, T. F. Heinz, and Y. R. Shen, "Multiphonon Raman Scattering from Individual Single-Walled Carbon Nanotubes" Phys. Rev. Lett. 98, 047402 (2007).

 

2006

P. Pagliusi, C.Y. Chen and Y.R. Shen, "Surface vibrational spectroscopic studies of rubbed polyvinyl cinnamate for liquid crystal alignment", Proc. of SPIE, 6332, 63320X (2006)

 

McGuire JA, Raschke MB, Shen YR, "Electron Dynamics of Silicon Surface States: Second Harmonic Hole Burning on Si(111)-(7x7)", Phys. Rev. Lett. 96, 087401 (2006).

 

Wei-Tao Liu, Luning Zhang, Y. R. Shen, "Interfacial Structures of methanol:water mixtures at a hydrophobic interface probed by sum-frequency vibrational spectroscopy", J. Chem. Phys. 125, 144711 (2006).

 

P. Pagliusi, C. Y. Chen, and Y. R. Shen, "Molecular Orientation and Alignment of Rubbed Poly(Vinyl Cinnamate) Surfaces", J. Chem. Phys. 125, 201104 (2006).

 

F. Wang and Y. R. Shen, "General Properties of Local Plasmons in Metal Nanostructures", Phys Rev Lett, 97, 206806 (2006).

 

Y. R. Shen, "Nonlinear Optical Spectroscopy of Molecular Chirality", "Trends and Perspectives in Modern Computational Science", Vol. 6, 461-471, edited by G. Maroulis and T. Simos, (Brill Academic Pub., The Netherlands, 2006).

 

P. Pagliusi, F. Lagugne-Labarthet, D. K. Shenoy , E. Dalcanale, Y. R. Shen, "Sensing vase-to-kite switching of cavitands by sum-frequency vibrational spectroscopy", Journal of the American Chemical Society, 128, 12610-12611, (2006).

 

J. A. McGuire, Y. R. Shen, "Ultrafast vibrational dynamics at water interfaces", Science, 313, 1945-1948, (2006).

 

N. Ji, V. Ostroverkhov, M. A. Belkin, Y. J. Shiu, Y. R. Shen, "Towards Chiral Sum-Frequency Spectroscopy", Journal of the American Chemical Society, 128, 8845-8848, (2006).

 

K. Ikeda, W. T. Liu, Y. R. Shen, H. Uekusa, Y. Ohashi, S. Koshihara, "Study of chirality and photo-induced chirality in cobaloxime complex crystals", Chemical Physics Letters, 422, 267-270, (2006).

 

Y. R. Shen, V. Ostroverkhov, "Sum-frequency vibrational spectroscopy on water interfaces: Polar orientation of water molecules at interfaces", Chemical Reviews, 106, 1140-1154, (2006).

 

J. A. McGuire, M. B. Raschke, Y. R. Shen, "Electron dynamics of silicon surface states: Second-harmonic hole burning on Si(111)-(7x7)", Physical Review Letters, 96, No. 087401, (2006).

 

N. Ji, K. Zhang, H. Yang,and Y. R. Shen, "Three-dimensional chiral imaging by sum-frequency generation", Journal of the American Chemical Society, 128, 3482 -3483, (2006).

 

N. Ji, Y. R. Shen, "A novel spectroscopic probe for molecular chirality", Chirality, 18, 146-158, (2006).

 

J. A. McGuire, Y. R. Shen, "Signal and noise in Fourier-transform sum-frequency surface vibrational spectroscopy with femtosecond lasers", Journal of the Optical Society of America B, 23, 363-369, (2006).

 

R. Huber, B. A. Schmid, Y. R. Shen, D. S. Chemla, R. A. Kaindl, "Stimulated terahertz emission from intraexcitonic transitions in Cu2O", Physical Review Letters, 96, No. 017402 , (2006).

 

2005

T. V. Truong and Y. R. Shen, "Novel method for selective probing of ground-state rotational dynamics of solutes in solvents", Journal of Chemical Physics, 122, No. 091104 , (2005).

 

T. V. Truong, L. Xu and Y. R. Shen, "Dynamics of the guest-host orientational interaction in dye-doped liquid-crystalline materials", Physical Review E, 72, No. 051709, (2005).

 

V. Ostroverkhov, G. A. Waychunas and Y. R. Shen, "New information on water interfacial structure revealed by phase-sensitive surface spectroscopy", Physical Review Letters, 94, No. 046102, (2005).

 

M. Oh-e, H. Yokoyama, S. Yorozuya, K. Akagi, M. A. Belkin and Y. R. Shen, "Chirality probed by sum-frequency vibrational spectroscopy for helically structured conjugated liquid crystalline polymers", Molecular Crystals and Liquid Crystals, 436, 1027-1035, (2005).

 

W. T. Liu, L. N. Zhang and Y. R. Shen, "Interfacial layer structure at alcohol/silica interfaces probed by sum-frequency vibrational spectroscopy", Chemical Physics Letters, 412, 206-209, (2005).

 

F. Lagugne-Labarthet, Y. Q. An, T. Yu, Y. R. Shen, E. Dalcanale and D. K. Shenoy, "Proton driven vase-to-kite conformational change in cavitands at an air-water interface monitored by surface SHG", Langmuir, 21, 7066-7070, (2005).

 

N. Ji and Y. R. Shen, "A dynamic coupling model for sum frequency chiral response from liquids composed of molecules with a chiral side chain and an achiral chromophore", Journal of the American Chemical Society, 127, 12933-12942, (2005).

 

K. Ikeda, W. T. Liu, Y. R. Shen, H. Uekusa, Y. Ohashi and S. Koshihara, "Photo-induced chirality switching in a cobaloxime complex crystal", Journal of Chemical Physics, 122, No. 141103, (2005).

 

M. A. Belkin and Y. R. Shen, "Non-linear optical spectroscopy as a novel probe for molecular chirality", International Reviews in Physical Chemistry, 24, 257-299, (2005).

 

Y. R. Shen, “Laser Science: Past, Present, and Future”, AAPPS Bulletin 15, 22 (2005).

 

Thai V. Truong, Lei Xu, Y. R. Shen, "Optical studies of molecular rotational dynamics in isotropic liquid crystalline materials", Liquid Crystals IX, Proceedings of SPIE Vol. 5936, 142-156 (Aug 2005).

 

2004

M. B. Raschke and Y. R. Shen, "Nonlinear optical spectroscopy of solid interfaces", Current Opinion in Solid State & Materials Science, 8, 343-352, (2004).

 

V. Ostroverkhov, G. A. Waychunas and Y. R. Shen, "Vibrational spectra of water at water/alpha-quartz (0001) interface", Chemical Physics Letters, 386, 144-148, (2004).

 

M. Oh-e, H. Yokoyama, S. Yorozuya, K. Akagi, M. A. Belkin and Y. R. Shen, "Sum-frequency vibrational spectroscopy of a helically structured conjugated polymer", Physical Review Letters, 93, No. 267402 , (2004).

 

O. Masahito, S. C. Hong and Y. R. Shen, "Nonlinear optical spectroscopic studies of polymer surfaces for liquid crystal alignment-photo-irradiated polyimide and rubbed polystyrene surfaces", Molecular Crystals and Liquid Crystals, 412, 1949-1959, (2004).

 

N. Ji and Y. R. Shen, "Sum frequency vibrational spectroscopy of leucine molecules adsorbed at air-water interface", Journal of Chemical Physics, 120, 7107-7112, (2004).

 

N. Ji and Y. R. Shen, "Optically active sum frequency generation from molecules with a chiral center: Amino acids as model systems", Journal of the American Chemical Society, 126, 15008-15009, (2004).

 

M. Hayashi, S. H. Lin and Y. R. Shen, "Applications of molecular theory of sum-frequency generations to study molecular chirality", Journal of Physical Chemistry A, 108, 8058-8076, (2004).

 

S. H. Han, M. A. Belkin and Y. R. Shen, "Optically active second-harmonic generation from a uniaxial fluid medium", Optics Letters, 29, 1527-1529, (2004).

 

K. C. Chou, S. Westerberg, Y. R. Shen, P. N. Ross and G. A. Somorjai, "Probing the charge-transfer state of CO on Pt(111) by two-dimensional infrared-visible sum frequency generation spectroscopy", Physical Review B, 69, No. 153413 , (2004).

 

M. A. Belkin, Y. R. Shen and R. A. Harris, "Sum-frequency vibrational spectroscopy of chiral liquids off and close to electronic resonance and the antisymmetric Raman tensor", Journal of Chemical Physics, 120, 10118-10126, (2004).

 

V. M. Agranovich, Y. R. Shen, R. H. Baughman and A. A. Zakhidov, "Linear and nonlinear wave propagation in negative refraction metamaterials", Physical Review B, 69, No. 165112 , (2004).

 

V. M. Agranovich, Y. R. Shen, R. H. Baughman and A. A. Zakhidov, "Optical bulk and surface waves with negative refraction", Journal of Luminescence, 110, 167-173, (2004).

 

2003

Thai V. Truong, Lei Xu, Y.R. Shen, "Early Dynamics of Guest-Host Interaction in Dye-Doped Liquid Crystalline Materials", Phys. Rev. Letts., 90, 193902 (2003).

 

F. Lagugne-Labarthet and Y.R. Shen, "Nonlinear optical microscopy" in Optical Imaging and Microscopy: Techniques and Applications, ed. P. Torok and F. J. Kao, (Springer Verlag, Berlin, 2003), Ch. 7.

 

S.-C. Hong, C. Zhang, and Y. R. Shen, "Rubbing-induced polar ordering in Nylon-11", Appl. Phys. Lett. 82, 3068-7- (2003).

 

R. D. Schaller, R. J. Saykally, Y. R Shen and F. Lagugne-Labarthet, "Poled polymer thin-film gratings studied with far-field optical diffraction and second-harmonic near-field microscopy", Optics Letters, Vol. 28, 1296(2003)

 

Chun Zhang, Seok-Cheol Hong, Na Ji, Yen-Po Wang, Kung-Hwa Wei and Y.R. Shen, "Sum-Frequency Vibrational Spectroscopic Study of Surface Glass Transition of Poly(vinyl alcohol)", Macromolecules, Vol. 36, 3303-3306 (2003).

 

C. Alonso, R.W. Gurney, R. Eliash, S.C. Hong, Y.R.. Shen, T.R. Jensen, K. Kjaer, O. Konovalov, M. Lahav, L. Leiserowitz, “A crystalline Langmuir monolayer designed as a template for selective intercalation of water soluble alpha-amino acids”, Crystal Growth & Design. 3.:683-690, (2003)

 

J.J. Ge, S.-C. Hong, B.Y. Tang, C.Y. Li, D. Zhang, F. Bai, B. Mansdorf, F.W. Harris, D. Yang, Y.R.Shen, S.Z.D. Cheng, “Assembly of Photopolymerizable Discotic Molecules on an Aligned Polyimide Layer Surface to Form a Negative Retardation Film with an Oblique Optical Axis”, Advanced Functional Materials 13, 718-725 (2003).

 

F. Lagugne-Labarthet, T. Yu, W.R. Barger, D.K. Shenoy, E. Dalcanale, Y.R. Shen, "Orientation of cavitands at air/water and air/solid interfaces studied by second harmonic generation", Chemical Physics Letters 381, 322-328 (2003)

 

M.A. Belkin and Y. R. Shen, "Doubly resonant sum-frequency vibrational spectroscopy on a chiral monolayer", Phys. Rev. Lett. 91, 213907 (2003)

 

V. Ostroverkhov, G. Waychunas, and Y. R. Shen, “Vibrational spectra of water at

 

water/alpha-quartz (0001) interface” Chemical Physics Letters, 386, 144-148 (2004).

 

N.Ji , V.Ostroverkhov , F. Lagugne-Labarthet , Y.R.Shen, “Surface vibrational spectroscopy on shear-aligned poly(tetrafluoroethylene) films”, J. American Chemical Society. 125,14218-14219 (2003).

 

2002

M. Hayashi, S.H. Lin, M.B. Raschke, and Y.R. Shen, "A Molecular Theory for Doubly Resonant IR-UV-vis Sum-Frequency Generation", J. Physics Chem. A 106, 2271-83 (2002).

 

Zhan Chen, Y.R. Shen, Gabor A. Somorjai, "Studies of Polymer Surface by Sum Frequency Generation Vibrational Spectroscopy", Annu. Rev. Phys. Chem. 53, 437-65 (2002).

 

X. Wei, and Y.R. Shen, "Vibrational Spectroscopy on Ice Interfaces", Applied Physics B 74, 617-20 (2002).

 

M.B. Raschke, M. Hayashi, S. H. Lin, and Y.R. Shen, "Doubly-resonant sum-frequency generation spectroscopy for surface studies", Chemical Physics Letters 359, 367-72 (2002).

 

Xing Wei, Paulo B. Miranda, Chun Zhang and Y.R. Shen, "Sum-Frequency Spectroscopic Studies of Ice Interfaces", Phys. Rev. B 66, 085401 (2002).

 

B. Averboukh, R. Huber, K.W. Cheah, Y.R. Shen, G.G. Qin, Z.C. Ma and W.H. Zong, "Luminescence studies of a Si/Sio2 superlattice", Journal of Applied Physics, Vol. 92, 3564-8 (2002).

 

Z. Chen, R. Wad, Y. Tian, Y. R. Shen, and G. A. Somorjai, "Interaction of fibrinogen with surfaces of end-group-modified polyurethanes: A surface-specific sum-frequency-generation vibrational spectroscopy study", J. Biomed. Mat. Res. 62, 254 (2002).

 

S.H. Han, N. Ji, M. A. Belkin, and Y.R. Shen, " Sum-frequency spectroscopy of electronic resonances on a chiral surface monolayer of bi-naphthol", Physical Review B 66, 165415 (2002).

 

M.A. Belkin, Y.R. Shen, C. Flytzanis, "Coupled-oscillator model for nonlinear optical activity", Chem. Phys. Lett. 363, 479-485 (2002).

 

R. Sammynaiken, S.J. Naftel, T.K. Sham, K. W. Cheah, B. Averboukh, R. Huber, Y.R. Shen, G. G. Qin, Z. C. Ma and W. H. Zong, "Structure and electronic properties of SiO2/Si multilayer superlattices: Si K edge and L 3,2 edge x-ray absorption fine structure study", Journal of Applied Physics, 92, 3000-6 (2002).

 

Masahito Oh-e, Seok Cheol Hong, and Y.R. Shen, "Orientations of phenyl sidegroups and liquid crystal molecules on a rubbed polystyrene surface", Applied Physics Letters 80, 784-6 (2002).

 

H. Held, A.I. Lvovsky, X. Wei, and Y.R. Shen, "Bulk contribution from isotropic media in surface sum-frequency generation", Physical Review B66, 205110 (2002).

 

M.A. Belkin, T.A. Kulakov, K.-H. Ernst, S.-H. Han, and Y.R. Shen, "Resonant Sum-Frequency Generation in Chiral Liquids", Optical Material 21, 1-5 (2002).

 

2001

C. Zhang, K. S. Lee, X. C. Zhang, X. Wei and Y. R. Shen, "Optical constants of ice Ih crystal at terahertz frequencies", Applied Physics Letters, 79, 491-493, (2001).

 

Y. L. Yeh, C. Zhang, H. Held, A. M. Mebel, X. Wei, S. H. Lin and Y. R. Shen, "Structure of the acetone liquid/vapor interface", Journal of Chemical Physics, 114, 1837-1843, (2001).

 

S. Ye, T. Saito, S. Nihonyanagi, K. Uosaki, P. B. Miranda, D. Kim and Y. R. Shen, "Stability of the Si-H bond on the hydrogen-terminated Si(111) surface studied by sum frequency generation", Surface Science, 476, 121-128, (2001).

 

X. Wei, P. B. Miranda and Y. R. Shen, "Surface vibrational spectroscopic study of surface melting of ice", Physical Review Letters, 86, 1554-1557, (2001).

 

X. Wei, X. Zhuang, D. Kim, S. C. Hong, T. Goto and Y. R. Shen, "Vibrational spectroscopy of rubbed polymer surfaces", Molecular Crystals and Liquid Crystals, 358, 103-108, (2001).

 

X. Wei and Y. R. Shen, "Motional effect in surface sum-frequency vibrational spectroscopy", Physical Review Letters, 86, 4799-4802, (2001).

 

Y. R. Shen, "Exploring new opportunities with sum-frequency nonlinear optical spectroscopy", Pure and Applied Chemistry, 73, 1589-1598, (2001).

 

M. Oh-e, D. Kim and Y. R. Shen, "Surface anisotropy from photo-induced bond breaking at polymer surfaces: A sum-frequency vibrational spectroscopic study of polyimide", Journal of Chemical Physics, 115, 5582-5588, (2001).

 

M. Oh-E, A. I. Lvovsky, X. Wei, D. S. Kim and Y. R. Shen, "Nonlinear optical studies of surface structures of rubbed polyimides and adsorbed liquid crystal monolayers", Molecular Crystals and Liquid Crystals, 364, 427-434, (2001).

 

M. Y. Mao, P. B. Miranda, D. S. Kim and Y. R. Shen, "Kinetics of molecular hydrogen dissociative adsorption on Si(111) studied by sum-frequency vibrational spectroscopy and second harmonic generation", Physical Review B, 64, No. 035415 , (2001).

 

K. Y. Kung, P. Chen, F. Wei, G. Rupprechter, Y. R. Shen and G. A. Somorjai, "Ultrahigh vacuum high-pressure reaction system for 2-infrared 1-visible sum frequency generation studies", Review of Scientific Instruments, 72, 1806-1809, (2001).

 

D. Kim, M. Oh-e and Y. R. Shen, "Rubbed polyimide surface studied by sum-frequency vibrational spectroscopy", Macromolecules, 34, 9125-9129, (2001).

 

S. C. Hong, M. Oh-e, X. W. Zhuang, Y. R. Shen, J. J. Ge, F. W. Harris and S. Z. D. Cheng, "Orientations of side chains and adsorbed liquid crystal molecules on a rubbed polyimide surface studied by optical second harmonic generation", Physical Review E, 63, No. 051706, (2001).

 

J. J. Ge, C. Y. Li, G. Xue, I. K. Mann, D. Zhang, S. Y. Wang, F. W. Harris, S. Z. D. Cheng, S. C. Hong, X. W. Zhuang and Y. R. Shen, "Rubbing-induced molecular reorientation on an alignment surface of an aromatic polyimide containing cyanobiphenyl side chains", Journal of the American Chemical Society, 123, 5768-5776, (2001).

 

P. Chen, K. Y. Kung, Y. R. Shen and G. A. Somorjai, "Sum frequency generation spectroscopic study of CO/ethylene coadsorption on the Pt(111) surface and CO poisoning of catalytic ethylene hydrogenation", Surface Science, 494, 289-297, (2001).

 

M. A. Belkin, S. H. Han, X. Wei and Y. R. Shen, "Sum-frequency generation in chiral liquids near electronic resonance", Physical Review Letters, 8711, (2001).

 

S. Baldelli, G. Mailhot, P. Ross, Y. R. Shen and G. A. Somarjai, "Potential dependent orientation of acetonitrile on platinum (111) electrode surface studied by sum frequency generation", Journal of Physical Chemistry B, 105, 654-662, (2001).

2000

X. Wei, S. C. Hong, A. I. Lvovsky, H. Held and Y. R. Shen, "Evaluation of surface vs bulk contributions in sum-frequency vibrational spectroscopy using reflection and transmission geometries", Journal of Physical Chemistry B, 104, 3349-3354, (2000).

 

X. Wei, S. C. Hong, X. W. Zhuang, T. Goto and Y. R. Shen, "Nonlinear optical studies of liquid crystal alignment on a rubbed polyvinyl alcohol surface", Physical Review E, 62, 5160-5172, (2000).

 

Y. R. Shen, "Surface nonlinear optics: A historical perspective", IEEE Journal of Selected Topics in Quantum Electronics, 6, 1375-1379, (2000).

 

M. Oh-e, S. C. Hong and Y. R. Shen, "Polar ordering at an interface between a liquid crystal monolayer and a rubbed polyimide", Journal of Physical Chemistry B, 104, 7455-7461, (2000).

 

M. Oh-e, A. I. Lvovsky, X. Wei and Y. R. Shen, "Sum-frequency generation (SFG) vibrational spectroscopy of side alkyl chain structures of polyimide surfaces", Journal of Chemical Physics, 113, 8827-8832, (2000).

 

K. Y. Kung, P. Chen, F. Wei, Y. R. Shen and G. A. Somorjai, "Sum-frequency generation spectroscopic study of CO adsorption and dissociation on Pt(111) at high pressure and temperature", Surface Science, 463, L627-L633, (2000).

 

S. Henrichs, C. P. Collier, R. J. Saykally, Y. R. Shen and J. R. Heath, "The dielectric function of silver nanoparticle Langmuir monolayers compressed through the metal insulator transition", Journal of the American Chemical Society, 122, 4077-4083, (2000).

 

R. Edgar, J. Y. Huang, R. Popovitz-Biro, K. Kjaer, W. G. Bouwman, P. B. Howes, J. Als-Nielsen, Y. R. Shen, M. Lahav and L. Leiserowitz, "Absolute orientation of molecules of amphiphilic alcohols in crystalline monolayers at the air-water interface", Journal of Physical Chemistry B, 104, 6843-6850, (2000).

 

Z. Chen, R. Ward, Y. Tian, S. Baldelli, A. Opdahl, Y. R. Shen and G. A. Somorjai, "Detection of hydrophobic end groups on polymer surfaces by sum-frequency generation vibrational spectroscopy", Journal of the American Chemical Society, 122, 10615-10620, (2000).

 

M. A. Belkin, T. A. Kulakov, K. H. Ernst, L. Yan and Y. R. Shen, "Sum-frequency vibrational spectroscopy on chiral liquids: A novel technique to