Highly sensitive frequency upconversion detection from 1 to 3 THz with OH1 crystal

The wide applications of terahertz (THz) wave technology in the ∼1–3 THz range has resulted in a surge in the demand for the performance improvement of THz wave detection technique. In this study, a frequency tunable, highly sensitive frequency upconversion detection based on a 2-(3-(4-hydroxystyryl...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2023-11, Vol.31 (23), p.38970-38976
Main Authors: Guo, Quanxin, Fan, Shuzhen, Yin, Xiaoqin, Jiao, Binzhe, Mu, Jiefeng, Ming, Na, Guo, Liyuan, Yuan, Jiasheng, Wang, Kaiyu, Zhang, Xingyu
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The wide applications of terahertz (THz) wave technology in the ∼1–3 THz range has resulted in a surge in the demand for the performance improvement of THz wave detection technique. In this study, a frequency tunable, highly sensitive frequency upconversion detection based on a 2-(3-(4-hydroxystyryl)-5,5-dime-thylcyclohex-2-enylidene) malononitrile (OH1) crystal at room temperature is demonstrated. Moreover, to effectively increase the signal-to-noise ratio in the low frequency range, a beam isolation enhancer is proposed and its effect is verified. The minimum detectable THz pulse energy reaches about 100 aJ at 1.9 THz. The frequency tuning ranging from 1 to 3 THz. Sensitivity comparison with a 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystal system shows that OH1 is a more suitable nonlinear crystal in the 1–2.4 THz range.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.505363