Supercontinuum generation in OHQ-N2S organic crystal driven by intense terahertz fields

被引：5

作者：

Giorgianni, Flavio ^{[1
]}

Puc, Uros ^{[2
]}

Jazbinsek, Mojca ^{[2
]}

Cea, Tommaso ^{[3
]}

Koo, Min-Jeong ^{[4
]}

Han, Jae-Hyun ^{[4
]}

Kwon, O-Pil ^{[4
]}

Vicario, Carlo ^{[1
]}

机构：

[1] Paul Scherrer Inst, Lab Nonlinear Opt, Forschungsstr 111, CH-5232 Villigen, Switzerland

[2] Zurich Univ Appl Sci ZHAW, Inst Computat Phys, CH-8401 Winterthur, Switzerland

[3] Imdea Nanosci, Faraday 9, Madrid 28015, Spain

[4] Ajou Univ, Dept Mol Sci & Technol, Suwon 443749, South Korea

来源：

OPTICS LETTERS | 2019年 / 44卷 / 19期

基金：

瑞士国家科学基金会; 新加坡国家研究基金会;

关键词：

THZ PULSES; LIGHT; EMISSION; MATTER;

D O I：

10.1364/OL.44.004881

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A laser supercontinuum is generated by cross-phase modulation (XPM) driven by an intense terahertz (THz) field in organic crystal OHQ-N2S. In this highly nonlinear medium, the THz electric field induces a time-varying optical phase modulation, which causes a spectacular spectral broadening and shifting of a co-propagating near-infrared laser pulse. The effect is enabled by the large electro-optic coefficient, the low absorption, and the good velocity matching between the laser and the THz pulse over the OHQ-N2S crystal thickness. The XPM occurs when the THz field is aligned along the polar axis of the OHQ-N2S. The results display a promising pathway for ultrafast control of the spectral and temporal properties of laser pulses using THz stimuli. (C) 2019 Optical Society of America

引用

页码：4881 / 4884

页数：4

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