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Development of dual-channel AOTF-based system for 3D imaging spectroscopy
Author(s): Alexander Machikhin; Vladislav Batshev; Vitold Pozhar; Mikhail Mazur; Alexander Naumov; Alexey Gorevoy
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Paper Abstract

We consider the problem of 3D imaging spectroscopy on base of a pair of acousto-optical tunable filters (AOTFs). In such a system, quality of stereoscopic spectral images is the key factor influencing the accuracy of three-dimensional (3D) measurements and shape reconstruction. We analyze the image quality in a dual-channel AOTF-based spectrometer and proposed the optical scheme, which is free of image blur and has only aberrations of image distortion and drift. They can be eliminated by means of geometrical calibration of the imager. The optical characteristics of the system prototype are presented. The theoretical analyses and calculations of image aberrations are confirmed by experiments. The devices based on the dual-channel AOTF-based stereoscopic system may be effectively used for various 3D imaging spectroscopy applications.

Paper Details

Date Published: 18 December 2019
PDF: 5 pages
Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1120857 (18 December 2019); doi: 10.1117/12.2540886
Show Author Affiliations
Alexander Machikhin, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
National Research Univ. "MPEI" (Russian Federation)
Vladislav Batshev, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
Bauman Moscow State Technical Univ. (Russian Federation)
Vitold Pozhar, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
Bauman Moscow State Technical Univ. (Russian Federation)
Mikhail Mazur, All-Russian Scientific Research Institute of Physical-Technical and Radioengineering measurements (Russian Federation)
Alexander Naumov, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
Alexey Gorevoy, Scientific and Technological Ctr. of Unique Instrumentation (Russian Federation)
National Research Univ. "MPEI" (Russian Federation)
All-Russian Scientific Research Institute of Physical-Technical and Radioengineering measurements (Russian Federation)


Published in SPIE Proceedings Vol. 11208:
25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii; Gennadii G. Matvienko, Editor(s)

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