Stereoscopic spectral filter for researching micro-objects

Authors: Batshev V.I., Bulygina N.A.
Published in issue: #7(60)/2021
DOI: 10.18698/2541-8009-2021-7-713
Category: Instrument Engineering, Metrology, Information-Measuring Instruments and Systems | Chapter: Laser and opto-electronic systems
Keywords: stereoscopic lens, micro-object, acousto-optic filter, spectroscopy, biprism, microscopy, three-dimensional image, aberration study
Published: 23.07.2021

The article is devoted to the development of a stereoscopic video spectrometer, which allows registering three-dimensional spectral images of objects at high speed, high spatial and spectral resolution. An acousto-optic filter was selected as a spectral element. The problems arising in the design of optical systems for such filters are analyzed. A paraxial optical system of a compact spectrometer using a biprism for the simultaneous formation of images of the observed object from two angles on one matrix radiation detector has been developed. The assessment of the image quality is carried out and the factors influencing it are analyzed. A general direction for improving the optical system to improve its characteristics is proposed.

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