Affiliation:
1. School of Mechanical and Electrical Engineering, Chengdu University of Technology 1 , Chengdu 610059, China
2. School of Industrial Technology, Chengdu University of Technology 2 , Yibin 644000, China
Abstract
Broadband second-harmonic generation (SHG) has important applications in many fields, such as femtosecond laser technology, optical communication, and biomedicine. The broadband SHG has been implemented in some crystals; however, it is not clear for forward and backward broadband quasi-phase-matching (QPM) SHGs in orientation-patterned Ⅱ-Ⅵ crystals. In this paper, the characters of orientation-patterned ZnS (OP-ZnS), orientation-patterned ZnSe (OP-ZnSe), and orientation-patterned CdTe (OP-CdTe) are, respectively, studied, including the forward broadband SHG and backward broadband SHG bandwidths at different temperatures. In addition, the influences of temperature on the forward broadband SHG bandwidth are investigated. The forward broadband QPM SHGs of OP-ZnS, OP-ZnSe, and OP-CdTe are obtained, and the backward broadband QPM SHGs cannot be obtained. The influence of temperature on the forward bandwidth is small.
Funder
Sichuan Science and Technology Program
Young and Middle-Aged Core Teacher Development Project of Chengdu University of Technology
Higher Education Talent Training Quality and Teaching Reform Project of Chengdu University of Technology
Subject
General Physics and Astronomy