Broadband terahertz pulse generation driven by an ultrafast thin-disk laser oscillator

被引：23

作者：

Paradis, Clement ^{[1
]}

Drs, Jakub ^{[1
]}

Modsching, Norbert ^{[1
]}

Razskazovskaya, Olga ^{[1
]}

Meyer, Frank ^{[2
]}

Kraenkel, Christian ^{[3
]}

Saraceno, Clara J. ^{[2
]}

Wittwer, Valentin J. ^{[1
]}

Sudmeyer, Thomas ^{[1
]}

机构：

[1] Univ Neuchatel, Lab Temps Frequence, CH-2000 Neuchatel, Switzerland

[2] Ruhr Univ Bochum, Photon & Ultrafast Laser Sci, D-44801 Bochum, Germany

[3] Leibniz Inst Crystal Growth, Ctr Laser Mat, D-12489 Berlin, Germany

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 20期

基金：

瑞士国家科学基金会;

关键词：

TIME-DOMAIN SPECTROSCOPY; 1; KW; POWER; MJ; SYSTEM; AIR;

D O I：

10.1364/OE.26.026377

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate broadband THz generation driven by an ultrafast thin-disk laser (TDL) oscillator. By optical rectification of 50-fs pulses at 61 MHz repetition rate in a collinear geometry in crystalline GaP. THz radiation with a central frequency at around 3.4 THz and a spectrum extending from below 1 THz to nearly 7 THz are generated. We realized a spectroscopic characterization of a GaP crystal and a benchmark measurement of the water-vapor absorption spectrum in the THz range. Sub-50-GHz resolution is achieved within a 5 THz bandwidth. Our experiments show the potential of ultrafast TDL oscillators for driving MHz-repetition-rate broadband THz systems. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：26377 / 26384

页数：8

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