Energy scaling and extended tunability of a ring cavity terahertz parametric oscillator based on KTiOPO_(4) crystal

作     者：Yuye Wang Yuchen Ren Degang Xu Longhuang Yang Yixin He Ci Song Linyu Chen Changzhao Li Chao Yan Jianquan Yao 王与烨;任宇琛;徐德刚;唐隆煌;贺奕焮;宋词;陈霖宇;李长昭;闫超;姚建铨

作者机构：Institute of Laser and OptoelectronicsSchool of Precision Instruments and Optoelectronic EngineeringTianjin UniversityTianjin 300072China Key Laboratory of Optoelectronic Information Science and Technology(Ministry of Education)Tianjin UniversityTianjin 300072China College of Computer and Information EngineeringTianjin Agricultural UniversityTianjin 300384China 

出 版 物：《Chinese Physics B》 (中国物理B(英文版))

年 卷 期：2018年第27卷第11期

页      面：512-516页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Project supported by the National Basic Research Program of China(Grant Nos.2015CB755403 and 2014CB339802) the National Key Research and Development Program of China(Grant No.2016YFC0101001) the National Natural Science Foundation of China(Grant Nos.61775160,61771332,and 61471257) China Postdoctoral Science Foundation(Grant No.2016M602954) Postdoctoral Science Foundation of Chongqing,China(Grant No.Xm2016021) 

主　　题：terahertz parametric oscillator KTiOPO_(4)crystal extended tunability energy scaling 

摘      要：A wide terahertz tuning range from 0.96 THz to 7.01 THz has been demonstrated based on ring-cavity THz wave parametric oscillator with a KTiOPO_(4)(KTP)*** tuning range was observed intermittently from 0.96 THz to 1.87 THz,from 3.04 THz to 3.33 THz,from 4.17 THz to 4.48 THz,from 4.78 THz to 4.97 THz,from 5.125 THz to 5.168 THz,from5.44 THz to 5.97 THz,and from 6.74 THz to 7.01 *** dual-Stokes wavelengths resonance phenomena were observed in some certain tuning angle *** the theoretical analysis of the dispersion curve of the KTP crystal,the intermittent THz wave tuning range and dual-wavelength Stokes waves operation during angle tuning process were *** theoretical analysis was in good agreement with the experiment *** maximum THz output voltage detected by Golay cell was 1.7 V at 5.7 THz under the pump energy of 210 mJ,corresponding to the THz wave output energy of5.47μJ and conversion efficiency of 2.6×10^(-5).