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

Cascaded third-harmonic-generation converter based on a single ADP crystal

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)   

  1. 1 State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;
    2 Key Laboratory of Functional Crystal Materials and Devices (Shandong University), Ministry of Education, Jinan 250100, China
  • 收稿日期:2017-03-08 修回日期:2017-04-10 出版日期:2017-08-05 发布日期:2017-08-05
  • 通讯作者: Zheng-Ping Wang, Xin-Guang Xu E-mail:zpwang@sdu.edu.cn;xgxu@sdu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61178060, 51202129, and 91022034), the Independent Innovation Foundation of Shandong University, China (Grant No. 2011GN056), and the Natural Science Foundation for Distinguished Young Scholar of Shandong Province, China (Grant No. 2012JQ18).

Cascaded third-harmonic-generation converter based on a single ADP crystal

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   

  1. 1 State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;
    2 Key Laboratory of Functional Crystal Materials and Devices (Shandong University), Ministry of Education, Jinan 250100, China
  • Received:2017-03-08 Revised:2017-04-10 Online:2017-08-05 Published:2017-08-05
  • Contact: Zheng-Ping Wang, Xin-Guang Xu E-mail:zpwang@sdu.edu.cn;xgxu@sdu.edu.cn
  • About author:0.1088/1674-1056/26/8/
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61178060, 51202129, and 91022034), the Independent Innovation Foundation of Shandong University, China (Grant No. 2011GN056), and the Natural Science Foundation for Distinguished Young Scholar of Shandong Province, China (Grant No. 2012JQ18).

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.

关键词: third-harmonic-generation, ADP crystal, polarization, ultraviolet laser

Abstract:

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.

Key words: third-harmonic-generation, ADP crystal, polarization, ultraviolet laser

中图分类号:  (Polarization)

  • 42.25.Ja
42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation) 42.70.Mp (Nonlinear optical crystals) 42.79.Nv (Optical frequency converters)