Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5442707 | Optical Materials | 2017 | 6 Pages |
Abstract
At the wavelength of 263 nm and 351 nm, the nonlinear absorption curves of 66% deuterated DKDP crystal were measured in the geometries of beam polarizing along the optics axis (Eâ¥Z) and perpendicular to it (Eâ¥Z). The results indicate that the nonlinear absorption in the Eâ¥Z geometry is stronger than that in the Eâ¥Z geometry. The nonlinear absorptions at 263 nm and 351 nm are identified to two- and three-photon absorption, respectively. The theoretical fits to the experimental data yields the two-photon absorption coefficients of 0.32 ± 0.03 cm/GW (Eâ¥Z geometry) and 0.17 ± 0.02 cm/GW (Eâ¥Z geometry) at 263 nm, and the three-photon absorption coefficients of (8.1 ± 1.1) Ã 10â4 cm3/GW2 (Eâ¥Z geometry) and (2.2 ± 0.5) Ã 10â4 cm3/GW2 (Eâ¥Z geometry) at 351 nm.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xiangxu Chai, Qihua Zhu, Bin Feng, Fuquan Li, Xi Feng, Fang Wang, Wei Han, Liquan Wang,