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http://dx.doi.org/10.3807/KJOP.2012.23.1.023

Implementation of Multi-channel Concurrent Detection Homodyne Frequency-domain Diffuse Optical Imaging System  

Jun, Young Sik (Department of Electronics and Radio Engineering, Kyung Hee University)
Baek, Woon Sik (Department of Electronics and Radio Engineering, Kyung Hee University)
Publication Information
Korean Journal of Optics and Photonics / v.23, no.1, 2012 , pp. 23-31 More about this Journal
Abstract
In this paper, we developed a frequency-domain diffuse optical imaging (DOI) system for imaging non-invasively using near-infrared (NIR) light sources and detectors. 70-MHz modulation and a homodyne scheme were adopted. By calibration of the coupling coefficients, concurrent detection measurements by 4 detector sets were optimized. We presented experimental reconstruction images of absorption and scattering coefficients in a liquid phantom, located an anomaly in the phantom and determined its optical properties. The images by the multi-channel concurrent detection were improved over the results by single-channel sequential detection. Tomographic slices of absorption and scattering coefficients in the phantom with an anomaly were also presented.
Keywords
Diffuse optical imaging; Frequency domain; Liquid phantom;
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Times Cited By KSCI : 1  (Citation Analysis)
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