Adaptive photodetector based on nonsteady-state photo-EMF for the detection of elastic deformations and stresses
- Authors: Bryushinin M.A.1, Kulikov V.V.1, Petrov A.A.1, Sokolov I.A.1, Balbashov A.M.2
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Affiliations:
- Ioffe Physicotechnical Institute
- National Research University MEI
- Issue: Vol 62, No 3 (2017)
- Pages: 431-435
- Section: Solid State Electronics
- URL: https://journals.rcsi.science/1063-7842/article/view/199111
- DOI: https://doi.org/10.1134/S1063784217030069
- ID: 199111
Cite item
Abstract
Detection of phase-modulated signals generated by mechanical oscillations of a transparent object (plane-parallel glass plate) is considered. The signal is measured with the aid of interferometric system that employs nonsteady-state photo-EMF in adaptive photodetector based on the β-Ga2O3 crystal. A mechanical system consisting of a glass plate and a piezoelectric transducer exhibits resonance at a frequency of about 100 kHz. The amplitude of phase modulation has a bell-shaped distribution over the plate surface in the frequency interval under study. The parameters of the adaptive photodetector are determined for a radiation wavelength of λ = 532 nm.
About the authors
M. A. Bryushinin
Ioffe Physicotechnical Institute
Author for correspondence.
Email: mb@mail.ioffe.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
V. V. Kulikov
Ioffe Physicotechnical Institute
Email: mb@mail.ioffe.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
A. A. Petrov
Ioffe Physicotechnical Institute
Email: mb@mail.ioffe.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
I. A. Sokolov
Ioffe Physicotechnical Institute
Email: mb@mail.ioffe.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
A. M. Balbashov
National Research University MEI
Email: mb@mail.ioffe.ru
Russian Federation, Krasnokazarmennaya ul. 14, Moscow, 111250