Selected Publications of Dr. G. S. He

Books

1. Physics of Nonlinear Optics , by G. S. He and S. H. Liu, World Scientific Publishing, 1999.
2. Nonlinear Optics and Photonics, by G. S. He, Oxford University Press, 2015.

Review papers

1. G. S. He, “Stimulated scattering effects of intense coherent light”, in Progress in Optics (ed. E. Wolf, Elsevier, 2009), 53, pp. 201-293.
2. G. S. He, L.-S. Tan, Q. Zheng, P. N. Prasad, “Multiphoton absorbing materials: molecular designs, characterizations, and applications”, Chem. Rev. 108, 1245-1330 (2008).
3. G. S. He, “Optical phase conjugation: principles, techniques, and applications”, Progress in Quantum Electronics, 26, 131-191 (2002).

Selected journal papers

1. N. B. Teran, G. S. He, A. Baev, Y. Shi, M. T. Swihart, P.N. Prasad, T. J. Marks, and J. R. Reynolds, “Twisted thiophene-based chromophores with enhanced intramolecular charge transfer for cooperative amplification of third-order optical nonlinearity,” J. Am. Chem. Soc, 138, 6975-6984 (2016).
2. G. H. He, P. N. Prasad, R. Kannan, and L.-S. Tan, “Highly efficient and two-photon excited stimulated Rayleigh-Bragg scattering in organic solutions,” J. Appl. Phys. 118, 033102 (2015).
3. Y. Shi, A. J.-T. Lou, G. S. He, A. Baev, M. T. Swihart, P. N. Prasad, and T. J. Marks, “Cooperative coupling of cyanine and tictoid twisted π‑systems to amplify organic chromophore cubic nonlinearities,” J. Am. Chem. Soc, 7, 4622-4625 (2015).
4. H. S. Oh, G. S. He, Guang S.W.-C. Law, Wing-Cheung; A. BaevH. Jee, X. Liu, A. Urbas, C. W. Lee, B. L. Choi, M. T. Swihart, and P. N. Prasad, “Manipulating nanoscale interactions in a polymer nanocomposite for chiral control of linear and nonlinear optical functions,” Adv. Mater. 26, 1607-1611 (2014).
5. G. S. He, M. J. Cho, W. J. Kim, A. Baev, A. Urbas, and P. N. Prasad, “Polarimetric z-scan Study of nonlinear chirooptic properties of chiral polyfluorene,” Adv. Opt. Mater. 1(10), 763-767 (2013).
6. G. S. He, W.-C. Law, A. Baev, S. Liu, M. T. Swihart, and P. N. Prasad, “Nonlinear optical absorption and stimulated Mie scattering in metallic nanoparticle suspensions,” J. Chem. Phys. 138, 024202 (2013).
7. G. S. He, K.-T. Yong, J. Zhu, and P. N. Prasad, “Observation of stimulated Mie-Bragg scattering from large-size- gold-nanorod suspension in water,” Phys. Rev. A 85, 043839 (2012).
8. G. S. He, W.-C. Law, L. Liu, X. Zhang, and P. N. Prasad, “Stimulated Mie scattering in nanocrystals suspension,” Appl. Phys. Lett., 101, 011110 (2012).
9. M. J. Dalton, R. Kannan, J. E. Haley, G. S. He, D. G. McLean, T. M. Cooper, P. N. Prasad, and L.-S. Tan, “Aromatic polyimides containing main-chain diphenylaminofluorene benzothiazole motif: fluorescence quenching, two-photon properties, and exciplex formation in a solid state,” Macromolecules 44, 7194 (2011).
10. . G. S. He, J. Zhu, A. Baev, M. Samoc, D. L. Frattarelli, N. Watanabe, A. Facchetti, H. Ågren, T. J. Marks, and P. N. Prasad, ‘Twisted π-System Chromophores for All-Optical Switching,” J. Am. Chem. Soc. 133, 6675–6680 ( 2011).
11. . G. S. He, H. S. Oh, and P. N. Prasad, “Superior optical limiting, stabilization, and spatio-temporal reshaping of ultrashort laser pulses in an opto-stable intrinsic polymer film,” Opt. Lett. 36, 4431-4433 (2011).
12. . J. Zhu, W. J. Kim, G. S. He, J. Seo, K.-T. Yong, D. Lee, A. N. Cartwright1, Y. Cui, and P. N. Prasad, “Enhanced photorefractivity in a polymer/nanocrystal composite photorefractive device at telecommunication wavelength,” Appl. Phys. Lett. 97, 263108 (2010).
13. . J. Zhu, K.-T. Yong, I. Roy, R. Hu, H. Ding, L. Zhao, M. T Swihart, G. S He, Y. Cui, and P. N Prasad, “Additive controlled synthesis of gold nanorods (GNRs) for two-photon luminescence imaging of cancer cells,” Nanotechnology 21, 285106 (2010).
14. . G. S. He, K.-T. Yong, J. Zhu, H.-Y. Qin, and P. N. Prasad, “Two- and three-photon absorption induced emission, optical limiting and stabilization of CdTe/CdS/ZnS quantum tripods system,” IEEE J. Quantum. Electron. 46, 931 (2010).
15. . G. S. He, J. Zhu, K.-T. Yong, A. Baev, H.-X. Cai, R. Hu, Y. Cui, X.-H. Zhang, and P. N. Prasad, “Scattering and absorption cross-section spectral measurements of gold nanorods in water,” J. Phys. Chem. C, 114, 2853–2860 (2010).
16. . G. S. He, J. Zhu, K.-T. Yong, R. Hu,1 Y. Cui, and P. N. Prasad, “Backward stimulated Bragg scattering in multiphoton active CdTe x Se 1−x quantum dots system,” J. Chem. Phys. 131, 214301 (2009).
17. . G. S. He, H.-Y Qin, Q. Zheng, “Rayleigh, Mie, and Tyndall scattering of polystyrene microspheres in water: wavelength, size and angle dependences,” J. Appl. Phys. 105, 023110 9 (2009).
18. . G. S. He, A. P. Zhang, Q. Zheng, H.-Y. Qin, P. N. Prasad, S. He, and H. Agren, “Multifocus structures of ultrashort self-focusing laser beam observed in a three-photon fluorescent medium,” IEEE J. Quantum Electron. 45, 816-824 (2009).
19. . Q. Zheng, G. S. He, and P. N. Prasad, “A novel near IR two-photon absorbing chromophore: optical limiting and stabilization performances at an optical communication wavelength,” Chem. Phys. Lett. 475, 250-255 (2009).
20. . G. S. He, Q. Zheng, K.-T. Yong, F. Erogbogbo, M. T. Swihart, and P. N. Prasad, Nano Lett. 8, 2688-2692 (2008).
21. . G. S. He, Ken-Tye Yong, H.-Y. Qin, Q. Zheng, P. N. Prasad, S. He, and H. Ågren, “Stimulated Rayleigh- Bragg scattering from a two-photon absorbing CdSe/Cds/ZnS quantum-rods system: optical power limiting and phase-conjugation,” IEEE J. Quantum Electron. 44, 894-901 (2008).
22. . G. S. He, H.-Y. Qin, Q. Zheng, P. N. Prasad, S. Jockusch, N. J. Turro, M. Halim, D. Sames, H. Ågren, and S. He, “Dynamic properties and optical phase conjugation of two-photon pumped ultrashort blue stimulated emission in a chromophore solution,” Phys. Rev. A 77, 013824/1-013824/10 (2008).
23. . G. S. He, Q. Zheng, N. Cheng, F. Xu, and P. N. Prasad, “Optical phase-conjugation property of three-photon excited backward stimulated emission,” J. Nonl. Opt. Phys. Mater. 16, 137-155 (2007).
24. . G. S. He, K.-T. Yong, Q. Zheng, Y. Sahoo, A. Baev, A. I. Ryasnyanskiy, and P. N. Prasad, “Multi-photon excitation properties of CdSe quantum dots solutions and optical limiting behavior in infrared range,” Optics Express 15, 12818-12833 (2007).
25. . G. S. He, Q. Zheng, K.-T. Yong, A. I. Ryasnyanskiy, and P. N. Prasad, “Two-photon absorption based optical limiting and stabilization by using a CdTe quantum dot solution excited at optical communication wavelength of ~1300 nm,” Appl. Phys. Lett. 90, 181108/1-181108/2 (2007).
26. . G. S. He, Q. Zheng, A. Baev, and P. N. Prasad, “Saturation of multi-photon absorption upon strong and ultrafast infrared laser excitation,” J. Appl. Phys. 101, 083108/1-083108/6 (2007).
27. . G. S. He, Q. Zheng, and P. N. Prasad, “Stimulated Rayleigh-Bragg scattering in a three-photon absorbing medium and its phase-conjugation property,” J. Opt. Soc. Am. B 24, 1166-1177 (2007).
28. . V. Kimberg, S. Polyutov, F. Gel'mukhanov, H. Agren, A. Baev, Q. Zheng, G. S. He, Phys. Rev. A, 74, 033814/1-033814/14 (2006).
29. . G. S. He, C. Lu, Q. Zheng, A. Baev, M. Samoc, and P. N. Prasad, “Asymmetric properties between the forward and backward stimulated emission generated by ultrafast three- and four-photon excitation,” Phys. Rev. A 73, 033815/1-033815/10 (2006).
30. . P. A. Padmawar, J. E. Rogers, G. S. He, L. Y. Chiang, Long Y.; L.-S. Tan, T. Canteenwala, Q. Zheng, J. E. Slagle, D. G. McLean, P. A. Fleitz, and P. N. Prasad, “Large cross-section enhancement and intramolecular energy transfer upon multiphoton absorption of hindered diphenylaminofluorene-C60 dyads and triads,” Chem. Mater., 18, 4065-4074 (2006).
31. . G. S. He, Q. Zheng, P.N. Prasad, J. G. Grote, and F. K. Hopkins, “Infrared two-photon- excited visible lasing from a DNA-surfactant- chromophore complex,” Opt. Lett., 31, 359-361 (2006).
32. . T.-C. Lin, G. S. He, Q. Zheng, P. N. Prasad, Jhong-Li, “Degenerate two-/three- photon absorption and optical power-limiting properties in femtosecond regime of a multi-branched chromophore,” J. Mater. Chem. 16, 2490-2498 (2006).
33. . T.-C. Lin, G. S. He, Q. Zheng, and P. N. Prasad, “Degenerate two-/three- photon absorption and optical power-limiting properties in femtosecond regime of a multi-branched chromophore,” J. Mater. Chem. 16, 2490-2498 (2006).
34. . S. Kim, Q. Zheng, G. S. He, D. J. Bharali, H. Pudavar, A. Baev, and P. N. Prasad, Aggregation-enhanced fluorescence and two-photon absorption in nanoaggregates of a 9,10-bis[4'- (4''-aminostyryl)styryl]anthracene derivative,” Advan. Funct. Mater, 16, 2317-2323 (2006).
35. . G. S. He, C. Lu, Q. Zheng, P. N. Prasad, P. Zerom, R. W. Boyd, and M. Samoc, “Stimulated Rayleigh-Bragg scattering in two-photon absorbing media,” Phys. Rev. A 71, 063810/1-063810/10 (2005).
36. . G. S. He, Q. Zheng, C. Lu, and P. N. Prasad, “Two- and three-photon absorption based optical limiting and stabilization using a liquid dye,” IEEE J. Quantum Electron. 41, 1037-1043 (2005).
37. . G. S. He, Q. Zheng, P. N. Prasad, R. Helgeson, and F. Wudl, “Nonlinear optical stabilization of 1064-nm laser pulses with a two-photon absorbing liquid-dye salt system,” Appl. Opt. 44, 3560-3564 (2005).
38. . G. S. He, T.-C. Lin, S.-J. Chung, Q. Zheng, C. Lu, Y. Cui, and P. N. Prasad, “Two-, three-, and four-photon- pumped stimulated cavityless lasing properties of ten stilbazolium-dyes solutions,” J. Opt. Soc. Am. B 22, 2219-2228 (2005).
39. . Y. Wang, G. S. He, P. N. Prasad, T. Goodson, III, “Ultrafast Dynamics in multibranched structures with enhanced two-photon absorption,” J. Am. Chem. Soc. 127, 10128-10129 (2005).
40. . Q. Zheng, G. S. He, and P. N. Prasad, “p-Conjugated dendritic nanosized chromophore with enhanced two- photon absorption,” Chem. Mater., 17, 6004-6011 (2005).
41. . P. P. Markowicz, G. S. He, P. N. Prasad, “Direct four-photon excitation of amplified spontaneous emission in a nonlinear organic chromophore,” Opt. Lett. 30, 1369-1371 (2005).
42. . Q. Zheng, G. S. He, and P. N. Prasad, “Novel two-photon- absorbing, 1,10-phenanthroline- containing π- conjugated chromophores and their nickel(II) chelated complexes with quenched emissions,” J. Mater.
Chem. 15, 579-587 (2005).
43. . V. K. S. Hsiao, C. Lu, G. S. He, M. Pan, A. N. Cartwright, P. N. Prasad, R. Jakubiak, R. A. Vaia, and T. J. Bunning, “High contrast switching of distributed-feedback lasing in dye-doped H-PDLC transmission grating structures,” Opt. Express 13, 3787-3794 (2005).
44. . G. S. He, T. Lin, and P. N. Prasad, "Stimulated Rayleigh-Bragg scattering enhanced by two-photon excitation," Opt. Express 12, 5952-5961 (2004).
45. . G. S. He, T.-C. Lin, J. Dai, and P. N. Prasad, “Degenerate two-photon- absorption spectral studies of highly two-photon active organic chromophores,” J. Chem. Phys., 120, 5275-5283 (2004).
46. . T.-C. Lin, G. S. He, P. N. Prasad, and L.-S. Tan, J. Mater. Chem. 14, 982-991 (2004).
47. . R. Kannan, G. S. He, T.-C. Lin, P. N. Prasad, R. A. Vaia, and L.-S. Tan, “Toward highly two-photon absorbing liquids. synthesis and characterization of 1, 3, 5-triazine- based octupolar molecules,” Chem.
Mater., 16, 185-194 (2004).
48. . R. Jakubiak, L. V. Natarajan, V. Tondiglia, G. S. He, P. N. Prasad, T. J. Bunning, and R. A. Vaia, “Electrically switchable lasing from pyrromethene 597 embedded holographic-polymer dispersed liquid crystals,” Appl. Phys. Lett. 85, 6095-6097 (2004).
49. . Q. Zheng, G. S. He, T.-C. Lin, and P. N. Prasad, “Synthesis and properties of substituted (p-aminostyral)- 1- (3-sulfooxypropyl)pyridinium inner salts as a new class of two-photon pumped lasing dyes,” J. Mater., Chem. 13, 2499-2504 (2003).
50. . G. S. He, R. Helgeson, T.-C. Lin, Q. Zheng, F. Wudl, and P. N. Prasad, “One-, two-, and three-photon pumped lasing in a novel liquid dye salt system,” IEEE J. Quantum Electron., 39, 1003-1008 (2003).
51. . G. S. He, T.-C. Lin, V. K. S. Hsiao, A. N. Cartwright, P. N. Prasad, L. V. Natarajan, V. P. Tondiglia, R. Jakubiak, R. A. Vaia, and T. J. Bunning, “Tunable two-photon pumped lasing using a holographic polymer- dispersed liquid-crystal grating as a distributed feedback element,” Appl. Phys. Lett., 83, 2733-2735 (2003).
52. . G. S. He, T.-C. Lin, P. N. Prasad, C.-C. Cho, and L.-J. Yu, “Optical power limiting and stabilization using a two-photon absorbing neat liquid crystal in isotropic phase,” Appl. Phys. Lett., 82, 4717-4719 (2003).
53. . G. S. He, J. Dai, T.-C. Lin, P. P. Markowicz, and P. N. Prasad, “Ultrashort 1.5-mm laser excited upconverted stimulated emission based on simultaneous three-photon absorption,” Opt. Lett., 28, 719-721 (2003).
54. . D. W. Brousmiche, J. M. Serin, J. M. Frechet, G. S. He, T.-C. Lin, S. J. Chung, and P. N. Prasad, “Fluorescence resonance energy transfer in a novel two-photon absorbing system,” J. Am. Chem. Soc. 125, 1448-1449 (2003).
55. . G. S. He, T.-C. Lin, Y. Cui, P. N. Prasad, D. W. Brousmiche, J. M. Serin, and J. M. Frechet, “Two-photon excited intramolecular energy transfer and light-harvesting effect in novel dendritic systems,”, Opt. Lett., 28, 768-770 (2003).
56. . G. S. He, P. P. Markowicz, T.-C. Lin, and P. N. Prasad, “Observation of stimulated emission by direct three- photon excitation,” Nature, 415, 767-770(2002).
57. . G. S. He, T.-C. Lin, P. N. Prasad, R. Kannan, R. A. Vaia, and L.-S. Tan, “Study of two-photon absorption spectral property of a novel nonlinear optical chromophore using femtosecond continuum,” J. Phys. Chem. B, 106, 11081-11084 (2002).
58. . G. S. He, “Optical phase-conjugation: principles, techniques and applications,” Progress of Quantum Electronics, 26, 131-191(2002).
59. . G. S. He, T.-C. Lin, P. N. Prasad, R. Kannan, R. A. Vaia, and L-S. Tan, “New technique for degenerate two- photon absorption spectral measurements using femtosecond continuum generation,” Optics Express, 10, 566-574(2002); http:/www.opticsexpress.org.
60. . R. Kannan, G. S. He, L. Yuan, F. Xu, P. N. Prasad, A. G. Dombroskie, B. A. Reinhardt, J. W. Baur, R. A. Vaia, and L.-S. Tan, “Diphenylaminofluorene-based two-photon-absorbing chromophores with various π- electron acceptors,” Chem. Mater. 13, 1896-1904 (2001).
61. . S.-J. Chung, T.-C. Lin, K.-S. Kim, G. S. He, J. Swiatkiewicz, P. N. Prasad, G. A. Baker, and F. V. Bright, “Two-photon absorption and excited-state energy-transfer properties of a new ultibranched molecule,” Chem. Mater. 13, 4071-4076 (2001).
62. . G. S. He, J. Swiatkiewicz, Y. Jiang, P. N. Prasad, B. A. Reinhards, L.-S. Tan, and R. Kannan, “Two-photon excitation and optical spatial-profile reshaping via nonlinear absorbing medium,” J. Phys. Chem., 104, 4805- 4810 (2000).
63. . A. Adronov, J. M. J. Frechet, G. S. He, K.-S. Kim, S.-J. Chung, J. Swiatkiewicz, and P. N. Prasad, “Novel two-photon absorbing dendritic structures,” Chem. Mater. 12, 2838-2841 (2000).
64. . O.-K Kim, K.-S. Lee, H. Y. Woo, K.-S. Kim, G. S. He, J. Swiatkiewicz, P. N. Prasad, “New class of two- photon-absorbing chromophores based on dithienothiophene,” Chem. Mater. 12, 284-286 (2000).
65. . M. Lal, L. Levy, K. S. Kim, G. S. He, X. Wang, Y. H. Min, S. Pakatchi, and P. N. Prasad, “Silica nanobubbles containing an organic dye in a multilayered organic/inorganic heterostructure with enhanced luminescence,” Chem. Mater. 12, 2632-2639 (2000).
66. . D. Liu and G. S. He, “Quasi-collinear and partially degenerate four-wave mixing: an alternative explanation of the phase-conjugation property of backward stimulated scattering,” Sov. Phys. JETP, 88, 235-245 (1999); Erratum, 88, 1241(1999).
67. . M. Lal, S. Pakatchi, G. S. He, K. S. Kim, and P. N. Prasad, “Dye-doped organogels: a new medium for two- photon pumped lasing and other optical applications,” Chem. Mater. 11, 3012-3014 (1999).
68. . S. J. Chung, K.-S. Kim, T.-C. Lin, G. S. He, J. Swiatkiewicz, and P. N. Prasad, “Cooperative enhancement of two-photon absorption in multi-branched structures,” J. Phys. Chem. B, 103, 10741-10745 (1999).
69. . G. S. He, R. Signorini, and P. N. Prasad, “Two-photon- pumped frequency-upconverted blue laser in coumarin dye solution,” Appl. Optics, 37, 5720-5726(1998).
70. . G. S. He, C. Weder, P. Smith, and P. N. Prasad, “Optical power limiting and stabilization based on a novel polymer compound,” IEEE J. Quantum Electron., 34, 2279-2285(1998).
71. . G. S. He and P. N. Prasad, “Phase-conjugation property of one-photon pumped backward stimulated emission from a lasing medium,” IEEE J. Quantum Electron., 34, 473-481(1998).
72. . G. S. He, N. Cheng, P. N. Prasad, D. Liu, and S. H. Liu, “Phase-conjugation properties of two-photon- pumped backward-stimulated emission. II. Thoretical studies,” J. Opt. Soc. Am. B, 15, 1086-1095(1998).
73. . G. S. He and P. N. Prasad, “Phase-conjugation properties of two-photon- pumped backward-stimulated emission. I. Experimental studies,” J. Opt. Soc. Am. B, 15, 1078-1085(1998).
74. . G. S. He, R. Signorini, and P. N. Prasad, “Longitudinally two-photon pumped leaky waveguide dye film laser,” IEEE J. Quantum Electron., 34, 7-13(1998).
75. . G. S. He, Y. Cui, and P. N. Prasad, “Spectral properties of backward stimulated scattering in liquid carbon disulfide,” Sov. Phys. JETP, 85, 850-856(1997); Erratum, 86, 420(1998).
76. . B. A. Reinhardt, L.L Brott, S. J. Clarson, A. G. Dillard, J.C. Bhatt, R. Kannan, L. Yuan, G. S. He, and P. N. Prasad, “Highly active two-photon dyes: design, synthesis, and characterization toward application,” Chem. Mater. 10, 1863-1874 (1998).
77. . G. S. He, K. S. Kim, L. Yuan, N. Cheng, and P. N. Prasad, “Two-photon pumped partially cross-linked polymer laser,” Appl. Phys. Let., 71, 1619-1621(1997).
78. . G. S. He, L. Yuan, P. N. Prasad, A. Abbotto, A. Facchetti, and G. A. Pagani, “Two-photon pumped frequency-upconversion lasing of a new blue-green dye material,” Opt. Commun., 140, 49-52(1997).
79. . G. S. He, L. Yuan, J. D. Bhawalkar, and P. N. Prasad, “Optical limiting, pulse reshaping, and stabilization with a nonlinear absorptive fiber system,” Appl. Opt., 36, 397-3392(1997).
80. . G. S. He, L. Yuan, Y. Cui, M. Li, and P. N. Prasad, “Studies of two-photon pumped frequency-upconverted lasing of a new dye material,” J. Appl. Phys., 81, 2529-2537(1997).
81. . G. S. He, L. Yuan, I. D. Bhawalkar, and P. N. Prasad, “Nonlinear optical properties of a new chromophore,” J. O. S. A. (B), 14, 1079-1087(1997).
82. . G. S. He, Y. Cui, M. Yoshida, and P. N. Prasad, “Phase-conjugate backward stimulated emission from a two-photon pumped lasing medium”, Opt. Lett., 22, 10-12(1997).
83. . G. S. He, M. Yoshida, J. D. Bhawalkar, and P. N. Prasad, “Two-photon- resonance enhanced refractive index change and self-focusing in a dye-solution filled hollow fiber system”, Appl. Opt., 36, 1155-1163(1997).
84. . G. S. He, Y. Cui, J. D. Bhawalkar, P. N. Prasad, and D. D. Bhawalkar, “Intracavity upconversion lasing within a Q-switched Nd:YAG laser,” Opt. Commun., 133, 175-179(1997).
85. . J. D. Bhawalkar, G. H. He, and P. N. Prasad, “Nonlinear multiphoton processes in organic and polymeric materials,” Rep. Prog. Phys., 59, 1041-1070(1996).
86. . G. S. He, J. D. Bhawalkar, C. F. Zhao, C. K. Park, and P. N. Prasad, “Upconversion dye-doped polymer fiber laser”, Appl. Phys. Lett., 68, 3549-3551(1996).
87. . G. S. He, J. D. Bhawalkar, C. F. Zhao, and P. N. Prasad, “Properties of two-photon pumped cavity lasing in novel dye doped solid matrices”, IEEE J. Quantum Electron., 32, 749-755(1996).
88. . J. D. Bhawalkar, G. S. He, C.-K. Park, C. F. Zhao, G. Ruland, and P. N. Prasad “Efficient, two-photon pumped green upconverted cavity lasing in a new dye,” Opt. Commun., 124, 33-7 (1996).
89. . J. D. Bhawalkar, J. Swiatkiewicz, S. J. Pan, J. K. Samarabandu, W. S. Liou, G. S. He, R. Berezney, P. C. Cheng, and P. N. Prasad, “Three-dimensional laser scanning two-photon fluorescence confocal microscopy of polymer materials using a new, efficient upconverting fluorophore,” Scanning, 18, 562-566 (1996).
90. . G. S. He, J. D. Bhawalkar, C. F. Zhao, C. K. Park, and P. N. Prasad "Two-photon pumped cavity lasing in a dye solution filled hollow fiber system", Opt. Lett., 20, 2393-2395(1995).
91. . G. S. He, J. D. Bhawalkar, C. F. Zhao, p. N. Prasad, "Optical limiting effect in a novel two-photon absorption dye doped solid matrix", Appl. Phys. Lett., 67, 2433-2435(1995).
92. . G. S. He, J. D. Bhawalkar, P. N. Prasad, and B. A. Reinhardt, “Three-photon- absorption induced fluorescence and optical limiting effects in an organic compound", Opt. Lett., 20, 1524-1526(1995).
93. . G. S. He, R. Gvishi, P. N. Prasad, and B. A. Reinhardt, "Two-photon absorption based optical limiting and stabilization in organic molecule-doped solid materials", Opt. Commun., 117, 133-136(1995).
94. . G. S. He, G. C. Xu, P. N. Prasad, B. A. Reinhardt, J. C. Bhatt, R. McKellar, and A. G. Dillard, "Two-photon absorption and optical limiting properties of novel organic compounds", Opt. Lett., 20, 435-437(1995).
95. . G. S. He, M. Casstevens, R. Burzynski, and X. Li, "Broadband, multiwavelength stimulated-emission source based on stimulated Kerr and Raman scattering in a liquid-core fiber system", Appl. Opt., 34, 444-454(1995).
96. . G. S. He, C. F. Zhao, J. D. Bhawalkar, P. N. Prasad, “Two-photon pumped cavity lasing in novel dye doped bulk matrix rods,” Appl. Phys. Lett. 67, 3703-5 (1995).
97. . J. D. Bhawalkar, G. S. He, P. N. Prasad, “Three-photon induced upconverted fluorescence from an organic compound: application to optical power limiting,” Opt. Commun. 119, 587-90 (1995).
98. . C. F. Zhao, G. S. He, J. D. Bhawalkar, C. K. Park, and P. N. Prasad, “Newly synthesized dyes and their polymer/glass composites for one- and two-photon pumped solid-state cavity lasing,” Chem. Mater. 7, 1979- 83 (1995).
99. . G. S. He, C. F. Zhao, C. K. Park, and P. N. Prasad, "Dye film leaky waveguide laser", Opt.Commun., 111, 82-85(1994).
100. G. S. He, J. Zieba, J. T. Bradshaw, M. R. Kazmierczak, and P. N. Prasad, "Two-photon induced fluorescence behavior of DEANST organic crystal", Opt. Commun., 104, 102-106(1993).
101. G. S. He, G. C. Xu, Y. Cui, and P. N. Prasad, "Difference of spectral superbroadening behavior in Kerr-type and non-Kerr- type liquids pumped with ultrashort laser pulses", Appl. Opt., 32, 4507-4512(1993).
102. G. S. He, Y. Cui, G. C. Xu, and P. N. Prasad, "Multiple mode-locking of the Q-switched Nd:YAG laser with a coupled resonant cavity", Opt. Commun., 96, 321-329(1993).
103. G. S. He and G. C. Xu, "Efficient amplification of a broad-band optical signal through stimulated Kerr scattering in a CS 2 core fiber system", IEEE J. Quantum Electron., 28, 323-329(1992).
104. G. S. He, G. C. Xu, Y. Pang, and P. N. Prasad, "Temporal behavior of stimulated Kerr scattering in a CS 2 liquid-core hollow-fiber system", J. Opt. Soc. Am. B, 8, 1907-1913(1991).
105. G. S. He, C. J. Wung, G. C. Xu, and P. N. Prasad, "Two-dimensional optical grating produced on a poly-p- phenylene vinylene/V 2 O 5 -gel film by ultrashort pulsed laser radiation", Appl. Opt., 30, 3810-3817(1991).
106. Y. Cui, M. Zhao, G. S. He, and P. N. Prasad, “Dynamic characteristics of coherent and population grating processes in resonant degenerate four-wave mixing,” J. Phys. Chem. 95, 6842-8 (1991).
107. G. S. He, R. Burzynski, and P. N. Prasad, "A novel nonlinear optical effect: stimulated Raman-Kerr scattering in a benzenen liquid-core fiber", J. Chem. Phys., 93, 7647-7655(1990).
108. G. S. He and P. N. Prasad, “Stimulated Rayleigh-Kerr and Raman-Kerr scattering in a liquid-core hollow fiber system, Fiber & Integrated Optics, 9, 11-26 (1990).
109. G. S. He and P. N. Prasad, "Stimulated Kerr scattering and reorientation work of molecules in liquid CS 2 ", Phys. Rev. A, 41, 2687-2698(1990).