中国物理B ›› 2022, Vol. 31 ›› Issue (7): 74209-074209.doi: 10.1088/1674-1056/ac5243
Zhongyang Li(李忠洋)1,†, Qianze Yan(颜钤泽)1, Pengxiang Liu(刘鹏翔)2, Binzhe Jiao(焦彬哲)1, Gege Zhang(张格格)1, Zhiliang Chen(陈治良)1, Pibin Bing(邴丕彬)1, Sheng Yuan(袁胜)1, Kai Zhong(钟凯)3, and Jianquan Yao(姚建铨)3
Zhongyang Li(李忠洋)1,†, Qianze Yan(颜钤泽)1, Pengxiang Liu(刘鹏翔)2, Binzhe Jiao(焦彬哲)1, Gege Zhang(张格格)1, Zhiliang Chen(陈治良)1, Pibin Bing(邴丕彬)1, Sheng Yuan(袁胜)1, Kai Zhong(钟凯)3, and Jianquan Yao(姚建铨)3
摘要: We propose a novel scheme for THz wave generation by repeated and continuous frequency conversions from pump wave to high-order Stokes waves (HSWs). The repeated frequency conversions are accomplished by oscillations of Stoke waves in resonant cavity (RC) where low-order Stokes waves (LSWs) are converted to high-order Stokes waves again and again. The continuous frequency conversions are accomplished by optimized cascaded difference frequency generation (OCDFG) where the poling periods of the optical crystal are aperiodic leading to the frequency conversions from low-order Stokes waves to high-order Stokes waves uninterruptedly and unidirectionally. Combined with the repeated and continuous frequency conversions, the optical-to-THz energy conversion efficiency (OTECE) exceeds 26% at 300 K and 43% at 100 K with pump intensities of 300 MW/cm2.
中图分类号: (Optical parametric oscillators and amplifiers)