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Title: Interferometer-in-spectrometer for high-resolution optical coherence tomography
Authors: Liu, Lishuang
Xie, Jun
Liu, Linbo
Chen, Si
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Liu, L., Xie, J., Liu, L. & Chen, S. (2020). Interferometer-in-spectrometer for high-resolution optical coherence tomography. Journal of Sensors, 2020.
Journal: Journal of Sensors
Abstract: Ultrahigh-resolution optical coherence tomography provides an axial resolution of 1-2 μm for resolving cellular structures of biological tissues critical for the diagnosis of diseases. However, it requires a relatively large spectral bandwidth which is not supported by the key components of the imaging system. We propose a novel spectral-domain OCT design, termed interferometer-in-spectrometer, which is able to compensate the bandwidth limitations of the grating and the line scan sensor by spectral shaping without compromising the signal intensity and adding the system cost. The advantage of axial resolution and ranging depth over the standard design is experimentally validated using the standard testing method and fresh swine cornea ex vivo. Moreover, opportunities that opened up by this new scheme for improving the performances of spectral-domain OCT are also discussed.
ISSN: 1687-725X
DOI: 10.1155/2020/2530257
Schools: School of Electrical and Electronic Engineering 
School of Chemical and Biomedical Engineering 
Rights: © 2020 The Author(s). This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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