Please use this identifier to cite or link to this item:
https://observatorio.fm.usp.br/handle/OPI/47428| Title: | Ultrahigh resolution spectral-domain optical coherence tomography using the 1000-1600 nm spectral band |
| Authors: | BERNSTEIN, L. I. A. N. E.; RAMIER, A. N. T. O. I. N. E.; WU, J. I. A. M. I. N.; AIELLO, V. E. R. A. D.; BELAND, M. A. R. I. E. J.; LIN, C. H. A. R. L. E. S. P.; YUN, SEOK-HYUN |
| Citation: | BIOMEDICAL OPTICS EXPRESS, v.13, n.4, p.1939-1947, 2022 |
| Abstract: | Ultrahigh resolution optical coherence tomography (UHR-OCT) can image micro-scopic features that are not visible with the standard OCT resolution of 5-15 mu m. In previous studies, high-speed UHR-OCT has been accomplished within the visible (VIS) and near-infrared (NIR-I) spectral ranges, specifically within 550-950 nm. Here, we present a spectral domain UHR-OCT system operating in a short-wavelength infrared (SWIR) range from 1000 to 1600 nm using a supercontinuum light source and an InGaAs-based spectrometer. We obtained an axial resolution of 2.6 mu m in air, the highest ever recorded in the SWIR window to our knowledge, with deeper penetration into tissues than VIS or NIR-I light. We demonstrate imaging of conduction fibers of the left bundle branch in freshly excised porcine hearts. These results suggest a potential for deep-penetration, ultrahigh resolution OCT in intraoperative applications. (c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement |
| Appears in Collections: | Artigos e Materiais de Revistas Científicas - HC/InCor |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| art_BERNSTEIN_Ultrahigh_resolution_spectraldomain_optical_coherence_tomography_using_the_2022.PDF | publishedVersion (English) | 8.15 MB | Adobe PDF |  View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.