基于光学参量振荡器的太赫兹辐射的相干电光探测

Coherent electro-optical detection of terahertz radiation from an optical parametric oscillator.

作者信息

Meng F Z, Thomson M D, Molter D, Löffler T, Jonuscheit J, Beigang R, Bartschke J, Bauer T, Nittmann M, Roskos H G

机构信息

1Johann Wolfgang Goethe-Universität, Physikalisches Institut, Max-von-Laue-Str. 1, D-60438 Frankfurt, Germany.

出版信息

Opt Express. 2010 May 24;18(11):11316-26. doi: 10.1364/OE.18.011316.

DOI:10.1364/OE.18.011316

PMID:20588993

Abstract

We report the realization of coherent electro-optical detection of nanosecond terahertz (THz) pulses from an optical parametric oscillator, which is pumped by a Q-switched nanosecond Nd:YVO4 laser at 1064 nm and emits at approximately 1.5 THz. The beam profile and wavefront of the THz beam at focus are electro-optically characterized toward the realization of a real-time THz camera. A peak dynamic range of approximately 37 dB/radical Hz is achieved with single-pixel detection.

摘要

我们报告了从光学参量振荡器实现对纳秒太赫兹（THz）脉冲的相干电光检测，该光学参量振荡器由调Q纳秒1064nm Nd:YVO4激光器泵浦，并在约1.5太赫兹处发射。为了实现实时太赫兹相机，对聚焦处太赫兹光束的光束轮廓和波前进行了电光表征。单像素检测实现了约37 dB/√Hz的峰值动态范围。