[8a-A31-1~8] 3.4 Laser system and materials

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8a-A31-4] Thermo-optical coupled analysis for high-power deep-ultraviolet light generation using CsLiB₆O₁₀ crystal

〇Kotaro Morita¹, Tomoaki Nambu¹, Ryota Murai², Yusuke Mori^2,3, Masashi Yoshimura^1,2 (1.ILE, the Univ. of Osaka, 2.SOSHO CHOKO Inc, 3.Grad. Sch. of Eng., the Univ. of Osaka)

Keywords:

wavelength conversion,thermal analysis,nonlinear optical materials

This study analyzed the thermal effects caused by deep-ultraviolet (DUV) light absorption during high-power DUV light generation using a nonlinear optical crystal. A thermo-optical coupled calculation model for wavelength conversion was developed, and the experimental conditions reported in a previous study were incorporated to evaluate the temperature rise inside the crystal and the resulting thermal phase mismatch. The calculated results reproduced the saturation tendency of the SHG output power, demonstrating the potential of this model as a basis for developing design guidelines toward higher-power operation.