Generation of ultraviolet radiation with wide angular tolerance in cesium lithium borate crystal

Pramana

Gopal C Bhar¹  Pathik Kumbhakar1 2¹  Anil K Chaudhary¹ 

[1] Laser Laboratory, Physics Department, Burdwan University, Burdwan 713 104, India$$

关键词: Non-linear optics;    ultraviolet radiation;    tangential phase-matching;    Sellmeier dispersion;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Tangential phase-matching has been realised in cesium lithium borate (CLBO) crystal for the first time for the generation of fourth harmonic (266 nm) of Nd:YAG and third harmonic (226.7 nm) of a dye laser radiation by second harmonic generation and sum-frequency mixing with the angular tolerance as large as 22 mrad and 21 mrad respectively, over one of the interacting beams. An energy conversion efficiency of 15% for fourth harmonic generation is obtained with a 5.5 mm thick crystal and with the average pump powers only 170 and 70 mW. A set of Sellmeier dispersion equations for the CLBO crystal have also been formulated.

【 授权许可】

Unknown