Information productivity of the systems intended for biological objects images multispectral processing using acousto-optic tunable filters

Zaichenko, Kirill V.; Gurevich, Boris

doi:10.1063/1.5122006

Cited by 1 publication

(1 citation statement)

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“…Herein, we present an HSI system with the capability of acquiring the spectral images of an object over the desired spectral band by finely tuning the wavelength of acquisition. The proposed optical system offers the versatility to obtain spectral and hyperspectral imaging at a low cost compared to acousto-optic systems [44][45], where equipment like monochromators, wavelength filters, liquid crystal technology [46][47] and acousto-optic filters or modulators are used [48]. Our system avoids the use of these costly instruments.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Tunable Optical Spectral Imaging System Using a Grating in the Pupil Function

Garcia-Diaz¹,

Palillero-Sandoval²,

Escobedo-Alatorre³

et al. 2022

IEEE Access

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Hyperspectral imaging (HSI) systems have been demonstrated as a powerful imaging technique due to their high spectral resolution. HSI can obtain the spectrum for each pixel in the image of a scene, a feature that can be exploited to design optical systems with the purpose of analyzing and characterizing objects and identifying processes within the visible electromagnetic spectrum (bandwidth). In this paper, we present an HSI system comprising a diffraction grating placed in the exit pupil of our optical configuration. The spectrum for each pixel associated with the object appears in the first order of diffraction. We used this system to characterize and tune the required spectral band of the image of the captured object obtaining more information than with an optical imaging system. Accordingly, the proposed optical system is suitable to obtain spectral and hyperspectral imaging at low cost compared to an acoustooptic system or other HSI. The scanning system captures hundreds of spectral images associated with the object, obtaining a maximum spectral resolution of 0.26nm or 260 pm for one of our configurations.INDEX TERMS Hyperspectral imaging, spectral images, diffraction grating.

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