Abstract

We report and experimentally demonstrate a novel, to the best of our knowledge, sensitive and wideband optical detection strategy based on the light-induced thermoelastic effect in a miniature quartz tuning fork (mQTF) with low stiffness prongs. Compared with a traditional QTF, the soft prongs of the mQTF result in improved sensitivity. Experimental results demonstrate that the mQTF exhibits ∼54-fold superior sensitivity compared to a QTF, and the mQTF sensor has an ultra-broadband optical response, ranging from visible light to terahertz wavelengths. Its response time reaches 11.7 ms, and the minimum noise equivalent power (NEP) is measured to be 2.2 × 10⁻⁹ W Hz^−1/2 at room temperature. The mQTF exhibits advantages in its cost-effectiveness, sensitivity, and ultra-broadband response, and provides a promising approach for the detection of low-dose optical and terahertz-wave radiation.

© 2022 Optica Publishing Group

Clamp-type quartz tuning fork enhanced photoacoustic spectroscopy

Qian Wu, Haohua Lv, Leqing Lin, Hongpeng Wu, Marilena Giglio, Wenguo Zhu, Yongchun Zhong, Angelo Sampaolo, Pietro Patimisco, Lei Dong, Vincenzo Spagnolo, Jianhui Yu, and Huadan Zheng
Opt. Lett. 47(17) 4556-4559 (2022)

Graphene oxide and polydimethylsiloxane coated quartz tuning fork for improved sensitive near- and mid-infrared detection

Cunguang Lou, Hongjia Chen, Xitong Li, Xu Yang, Yu Zhang, Jianquan Yao, Yufei Ma, Chao Chang, and Xiuling Liu
Opt. Express 29(13) 20190-20204 (2021)

Quartz-enhanced photoacoustic spectroscopy sensing using trapezoidal- and round-head quartz tuning forks

Chao Fang, Tiantian Liang, Shunda Qiao, Ying He, Zuochun Shen, and Yufei Ma
Opt. Lett. 49(3) 770-773 (2024)

Ultra-high sensitive light-induced thermoelastic spectroscopy sensor with a high Q-factor quartz tuning fork and a multipass cell

Ying He, Yufei Ma, Yao Tong, Xin Yu, and Frank K. Tittel
Opt. Lett. 44(8) 1904-1907 (2019)

Acoustic microresonator based in-plane quartz-enhanced photoacoustic spectroscopy sensor with a line interaction mode

Ziting Lang, Shunda Qiao, and Yufei Ma
Opt. Lett. 47(6) 1295-1298 (2022)