AU - Omidi, Pooria AU - Hamidi, Arsham AU - Ahadi Akhlaghi, Ehsan TI - Simultaneous thickness and group index measurement with Spectral Domain Optical Coherence Tomography PT - JOURNAL ARTICLE TA - opsi JN - opsi VO - 24 VI - 0 IP - 0 4099 - http://opsi.ir/article-1-1492-en.html 4100 - http://opsi.ir/article-1-1492-en.pdf SO - opsi 0 ABĀ  - Optical Coherence Tomography is a new, non-destructive method based on low coherence interferometry that can identify different layers of a sample with high speed. In this article, we present a method based on spectral domain optical coherence tomography with visible light source that can measure group refractive index and thickness of multilayer samples simultaneously with 1 micrometer axial resolution. The results obtained uncertainties in the second decimal place for index value and thickness accurate to within 1 micrometer. CP - IRAN IN - LG - eng PB - opsi PG - 61 PT - Research YR - 2018