Investigation of Mach-Zehnder and Michelson Interferometers in Optical Coherence Tomography System and Increasing Light Penetration by Mie Scattering

Please enable javascript in your browser.

Khandani, Salile | 2021

377 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54590 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Amjadi, Ahmad; Parvin, Parviz
Abstract:
Optical coherence tomography is a rapidly evolving imaging technique that enables non-invasive cross-sectional imaging of high-sensitivity semi-transparent samples (poor scattering). The biggest limitation of optical coherence tomography is the low penetration depth (about a few millimeters) in tissue. OCT is based on low-coherence interferometry. In this study, we investigate Michelson and Mach-Zehnder interferometers in OCT set-up and explain the advantages of using Mach-Zehnder interferometers in OCT systems. Furthermore, in this thesis, we have shown that by using Mie scattering, we can have forward scattering, hence the penetration increases. We have suggested this method as a solution for the problem of limited penetration depth in OCT systems. The results have been published in reference 2
Keywords:
Optical Coherence Tomography ; Michelson Interferometer ; Mie Scattering Theory ; Scattering ; Penetration Height ; Mach-Zehnder Interferometer

No TOC