Development of dual-channel AOTF-based system for 3D imaging spectroscopy

Alexander Machikhin; Vladislav Batshev; Vitold Pozhar; Mikhail Mazur; Alexander Naumov; Alexey Gorevoy

doi:10.1117/12.2540886

18 December 2019 Development of dual-channel AOTF-based system for 3D imaging spectroscopy

Alexander Machikhin, Vladislav Batshev, Vitold Pozhar, Mikhail Mazur, Alexander Naumov, Alexey Gorevoy

Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 1120857 (2019) https://doi.org/10.1117/12.2540886
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

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.

Citation Download Citation

Alexander Machikhin, Vladislav Batshev, Vitold Pozhar, Mikhail Mazur, Alexander Naumov, and Alexey Gorevoy "Development of dual-channel AOTF-based system for 3D imaging spectroscopy", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1120857 (18 December 2019); https://doi.org/10.1117/12.2540886

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