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

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 08期

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

页码：13317 / 13327

页数：11

共 67 条

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