Optical rectification and electro-optic sampling in quartz

被引:15
作者
Balos, Vasileios [1 ,2 ]
Wolf, Martin [1 ]
Kovalev, Sergey [3 ]
Sajadi, Mohsen [1 ,4 ]
机构
[1] Max Planck Gesell, Fritz Haber Inst, Berlin, Germany
[2] IMDEA Nanociencia, Ciudad Univ Cantoblanco, Madrid, Spain
[3] Helmholtz Zent Dresden Rossendorf, Dresden, Germany
[4] Univ Paderborn, Dept Chem, Paderborn, Germany
基金
欧盟地平线“2020”;
关键词
BIOMEDICAL APPLICATIONS; TERAHERTZ SPECTROSCOPY; GENERATION; PULSES; RADIATION; ABSORPTION; VIBRATIONS; EMISSION; SYMMETRY; WATER;
D O I
10.1364/OE.480339
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report the electro-optic sampling (EOS) response and the terahertz (THz) optical rectification (OR) of the z-cut alpha-quartz. Due to its small effective second-order nonlinearity, large transparency window and hardness, freestanding thin quartz plates can faithfully measure the waveform of intense THz pulses with MV/cm electric-field strength. We show that both its OR and EOS responses are broad with extension up to similar to 8 THz. Strikingly, the latter responses are independent of the crystal thickness, a plausible indication of dominant surface contribution to the total second-order nonlinear susceptibility of quartz at THz frequencies. Our study introduces the crystalline quartz as a reliable THz electro-optic medium for high field THz detection, and characterize its emission as a common substrate.
引用
收藏
页码:13317 / 13327
页数:11
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