Enhanced depth penetration by dual-axis optical coherence tomography

Yang Zhao; Kengyeh K. Chu; Adam Wax

doi:10.1117/12.2507242

22 February 2019 Enhanced depth penetration by dual-axis optical coherence tomography

Yang Zhao, Kengyeh K. Chu, Adam Wax

Proceedings Volume 10867, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII; 1086704 (2019) https://doi.org/10.1117/12.2507242
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

Optical imaging techniques generally offer shallow penetration depths due to high scattering in biological tissue. We have recently developed dual-axis optical coherence tomography (DA-OCT) for interferometric imaging at extended depths. By illuminating and collecting at oblique angles, multiply forward scattered photons from deeper penetration depths were favorably detected. A Monte Carlo study demonstrated a >12-fold increase in signal-to-background ratio (SBR) in skin tissue at 1 mm depth by DA-OCT. A 1300 nm DA-OCT system was designed and constructed, offering an imaging depth of up to 2 mm in skin tissue

Conference Presentation

Citation Download Citation

Yang Zhao, Kengyeh K. Chu, and Adam Wax "Enhanced depth penetration by dual-axis optical coherence tomography ", Proc. SPIE 10867, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII, 1086704 (22 February 2019); https://doi.org/10.1117/12.2507242

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