中国物理B ›› 2017, Vol. 26 ›› Issue (8): 84201-084201.doi: 10.1088/1674-1056/26/8/084201
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Hong-Wei Qi(亓宏伟), Yu-Xiang Sun(孙玉祥), Zheng-Ping Wang(王正平), Xu-Zhao Zhang(张栩朝), Fa-Peng Yu(于法鹏), Xun Sun(孙洵), Xin-Guang Xu(许心光), Xian Zhao(赵显)
Hong-Wei Qi(亓宏伟)1,2, Yu-Xiang Sun(孙玉祥)1,2, Zheng-Ping Wang(王正平)1,2, Xu-Zhao Zhang(张栩朝)1,2, Fa-Peng Yu(于法鹏)1,2, Xun Sun(孙洵)1,2, Xin-Guang Xu(许心光)1,2, Xian Zhao(赵显)1,2
摘要:
Based on a specially designed optical structure, an efficient cascaded third-harmonic-generation (THG) output of a 1064-nm, pico-seconds pulse laser is successively realized by using an NH4H2PO4 (ADP) crystal that acts as the second-harmonic-generation component and sum-frequency-generation component. The maximum THG output is 1.61 mJ, and the highest conversion efficiency from 1064 nm to 355 nm reaches 35%, which are obviously superior to the results obtained using a KDP crystal under the same circumstance. The further phase-matching analysis indicates that this THG configuration of ADP crystal can be applied to various fundamental wavelengths in a range of 1 μ-1.1 μm. Compared with the previously reported KDP THG converter, which is based on a similar principle, the present ADP THG converter is favorable for large-energy, high-efficiency operation because of the larger effective nonlinear optical coefficient deff and higher laser damage threshold.
中图分类号: (Polarization)