Open AccessAcousto-optic filtration in low-coherence spectral-domain interferometry
Author(s) -
Ludmila Burmak
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2127/1/012034
Subject(s) - michelson interferometer , interferometry , optics , coherence (philosophical gambling strategy) , interference (communication) , optical coherence tomography , filter (signal processing) , interference microscopy , optical filter , signal (programming language) , white light interferometry , coherence length , frequency domain , physics , computer science , telecommunications , channel (broadcasting) , superconductivity , quantum mechanics , programming language , computer vision
The basic principles of measurements in spectral-domain low coherence interferometry (optical coherence tomography, optical coherence microscopy) based on acousto-optic filtration are discussed. Relations for extracting information about sample’s spatial structure from a series of spectral interference images acquired with spectral tuning are given. The implementation of measurements in spectral domain using acousto-optic filtration is considered. The effect of the acousto-optic filter characteristics on depth measurement range and depth resolution is estimated. The results of modelling of the interference signal and experimental data obtained in the scheme with acousto-optic filtration of interfering beams at the output of Michelson interferometer are presented.