Title :
Nonlinear refraction in ZnS crystal associated with three-photon absorption
Author :
Li, H.P. ; Jiang, Y.D. ; He, J. ; Ji, W.
Author_Institution :
Sch. of Optoelectron. Inf., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
In this paper, we present the observation of nonlinear refraction in ZnS associated with three-photon absorption (3PA) at higher laser irradiances. The sample used in this study was z-cut, 0.5-mm thick ZnS single crystal. The Z-scan, pump-probe and optical-Kerr-effect (OKE) techniques with 780-nm, 120-fs laser pulses were employed to study optical nonlinearities in ZnS at room temperature
Keywords :
II-VI semiconductors; multiphoton processes; optical Kerr effect; optical materials; zinc compounds; 120 fs; 293 to 298 K; 780 nm; Z-scan technique; ZnS; laser irradiation; nonlinear refraction; optical nonlinearities; optical-Kerr-effect techniques; pump-probe technique; three-photon absorption; z-cut single crystal; Absorption; Laser excitation; Nonlinear optics; Optical films; Optical pumping; Optical refraction; Optical variables control; Pump lasers; Stimulated emission; Zinc compounds;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.279012
