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|Title:||Picosecond Z-scan study of bound electronic Kerr effect in LiNbO3 crystal associated with two-photon absorption|
|Citation:||Li, H.,Zhou, F.,Zhang, X.,Ji, W. (1997-06). Picosecond Z-scan study of bound electronic Kerr effect in LiNbO3 crystal associated with two-photon absorption. Applied Physics B: Lasers and Optics 64 (6) : 659-662. ScholarBank@NUS Repository.|
|Abstract:||The third-order optical nonlinearities in LiNbO3 crystal have been measured using Z-scan technique with picosecond pulses at 532 nm. The nonlinear absorption coefficient and nonlinear refractive index are determined to be 2.5 × 10-10 cm/W and 5.3 × 10-15 cm2/W, respectively. Both sign and magnitude of the measured refractive nonlinearity are considerably different from the reported Z-scan results in LiNbO3 obtained with cw laser beam at 514 nm. The nonlinearities in LiNbO3 induced by 532 nm picosecond pulses are believed to be mainly due to two-photon absorption and bound electronic Kerr effect associated with the two-photon absorption.|
|Source Title:||Applied Physics B: Lasers and Optics|
|Appears in Collections:||Staff Publications|
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