Femtosecond Z-scan measurements of nonlinear refraction in nonlinear optical crystals

被引:97
作者
Li, HP
Kam, CH
Lam, YL
Ji, W
机构
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Photon Lab, Singapore 639798, Singapore
[2] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore
关键词
nonlinear refraction; nonlinear optical crystals; Z-scan technique;
D O I
10.1016/S0925-3467(00)00038-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report an investigation of third-order optical nonlinearities in several nonlinear optical crystals using the Z-scan technique with femtosecond laser pulses at 780 nm wavelength. The crystals studied include LiNbO3:MgO, KTiOAsO4, KTiOPO4, beta -BaB2O4 and LiB3O5, which are extensively used for ultrashort-pulse second-harmonic generation and optical parametric oscillation. The nonlinear refractive index n(2) in these crystals has been determined to be in the range from 10(-16) to 10(-15) cm(2)/W. No two-photon absorption has been observed. The experimental results are compared with the two-band model for the bound electronic Kerr nonlinearity. It is shown that the measured n2 values in beta -BaB2O4 and LiB3O5 are one order of magnitude smaller than those of LiNbO3:MgO, KTiOAsO4, KTiOPO4, which is in agreement with the theoretical prediction. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:237 / 242
页数:6
相关论文
共 14 条
[1]  
Agrawal G. P., 2019, Nonlinear fiber optics, V6th
[2]   Single-beam Z-scan: Measurement techniques and analysis [J].
Chapple, PB ;
Staromlynska, J ;
Hermann, JA ;
McKay, TJ ;
McDuff, RG .
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS, 1997, 6 (03) :251-293
[3]   Z-SCAN STUDIES IN THE THIN-SAMPLE AND THE THICK-SAMPLE LIMITS [J].
CHAPPLE, PB ;
STAROMLYNSKA, J ;
MCDUFF, RG .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1994, 11 (06) :975-982
[4]   Z-SCAN MEASUREMENTS OF THE ANISOTROPY OF NONLINEAR REFRACTION AND ABSORPTION IN CRYSTALS [J].
DESALVO, R ;
SHEIKBAHAE, M ;
SAID, AA ;
HAGAN, DJ ;
VANSTRYLAND, EW .
OPTICS LETTERS, 1993, 18 (03) :194-196
[5]   Infrared to ultraviolet measurements of two-photon absorption and n(2) in wide bandgap solids [J].
DeSalvo, R ;
Said, AA ;
Hagan, DJ ;
VanStryland, EW ;
SheikBahae, M .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1996, 32 (08) :1324-1333
[6]   SELF-FOCUSING AND SELF-DEFOCUSING BY CASCADED 2ND-ORDER EFFECTS IN KTP [J].
DESALVO, R ;
HAGAN, DJ ;
SHEIKBAHAE, M ;
STEGEMAN, G ;
VANSTRYLAND, EW ;
VANHERZEELE, H .
OPTICS LETTERS, 1992, 17 (01) :28-30
[7]   TI SAPPHIRE 2ND-HARMONIC-PUMPED VISIBLE RANGE FEMTOSECOND OPTICAL PARAMETRIC OSCILLATOR [J].
DRISCOLL, TJ ;
GALE, GM ;
HACHE, F .
OPTICS COMMUNICATIONS, 1994, 110 (5-6) :638-644
[8]   CHARACTERISTICS OF A NONCRITICALLY PHASEMATCHED TI-SAPPHIRE PUMPED FEMTOSECOND OPTICAL PARAMETRIC OSCILLATOR [J].
DUDLEY, JM ;
REID, DT ;
EBRAHIMZADEH, M ;
SIBBETT, W .
OPTICS COMMUNICATIONS, 1994, 104 (4-6) :419-430
[9]   ANALYSIS OF SPATIAL SCANNING WITH THICK OPTICALLY NONLINEAR MEDIA [J].
HERMANN, JA ;
MCDUFF, RG .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1993, 10 (11) :2056-2664
[10]   FEMTOSECOND MEASUREMENT OF NONLINEAR ABSORPTION AND REFRACTION IN CDS, ZNSE, AND ZNS [J].
KRAUSS, TD ;
WISE, FW .
APPLIED PHYSICS LETTERS, 1994, 65 (14) :1739-1741