Abstract
We demonstrate a novel, to the best of our knowledge, micro-opto-electro-mechanical system (MOEMS) gyroscope based on the Talbot effect of a single-layer near-field diffraction grating. The Talbot effect of an optical grating is studied both theoretically and experimentally. A structure of grating–mirror combination, fabricated by the micro–nano processing method, is used for out-of-plane structure detection. The detection of a weak Coriolis force is realized by using the highly sensitive displacement characteristic of Talbot imaging of near-field diffraction with a mirror mass block and single-layer grating. The experimental results show that, the micro-displacement detection sensitivity can reach up to 0.09%/nm, and the MOEMS gyroscope can be moved in the driven direction, with a resonant frequency of 7048 Hz and a quality factor of 700, which indicates great potential of the Talbot effect in developing novel high-performance micro-gyroscopes.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Liming Jin, Ce Wang, Li Jin, Wenqing Chen, Haodong Xu, Min Cui, and Mengwei Li
Appl. Opt. 61(18) 5386-5391 (2022)
Wenyi Huang, Senyu Zhang, Jamal N. A. Hassan, Xing Yan, Dingwei Chen, Guangjun Wen, Kai Chen, Guangwei Deng, and Yongjun Huang
Opt. Express 31(8) 12433-12448 (2023)
Thomas Egloff, Jens Knobbe, Stefan Sinzinger, and Heinrich Grüger
Appl. Opt. 48(34) 6583-6593 (2009)