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Title: Extending axial focus of optical coherence tomography using parallel multiple aperture synthesis
Authors: Bo, En
Ge, Xin
Yu, Xiaojun
Mo, Jianhua
Liu, Linbo
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Aperture Synthesis
Optical Coherence Tomography
Issue Date: 2018
Source: Bo, E., Ge, X., Yu, X., Mo, J., & Liu, L. (2018). Extending axial focus of optical coherence tomography using parallel multiple aperture synthesis. Applied Optics, 57(13), 3556-3560. doi:10.1364/AO.57.003556
Series/Report no.: Applied Optics
Abstract: Compromising the inherent trade-off between transverse resolution and depth of focus (DOF) remains a long-standing issue in optical coherence tomography (OCT). In this work, we report a novel technique—parallel multiple aperture synthesis (pMAS) to simultaneously generate multiple optical apertures in an OCT sample arm by employing a two-surface coated mirror. In the proposed pMAS, the DOF is extended by a factor of 16.49 without sacrificing the transverse resolution for proof-of-concept experiments when multiple distinctive apertures are digitally synthesized. The microparticles and tissue experiments demonstrate the feasibility of pMAS to address the fundamental problem of limited DOF in high-resolution OCT.
ISSN: 1559-128X
DOI: 10.1364/AO.57.003556
Rights: © 2018 Optical Society of America. All rights reserved. This paper was published in Applied Optics and is made available with permission of Optical Society of America.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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