Neuromorphic Biophotonic Sensor Based on Near Infrared Optical Reflectometry
- Authors
- Han, Jae-Ho; Kang, Jin U.
- Issue Date
- 3월-2012
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Biomedical measurements; biomedical transducers; image sensors; optical fiber devices; optical reflectometry
- Citation
- IEEE SENSORS JOURNAL, v.12, no.3, pp.474 - 478
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE SENSORS JOURNAL
- Volume
- 12
- Number
- 3
- Start Page
- 474
- End Page
- 478
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/105443
- DOI
- 10.1109/JSEN.2010.2097587
- ISSN
- 1530-437X
- Abstract
- A biophotonic image sensor has been demonstrated by depositing a thin Au (gold) film on the single optical fiber by sputtering process to incorporate a self-contained reference plane, as well as to be sustainable for different contact interfacial medium. This side-viewing optical probe has been polished for 43 degrees-49 degrees angle in order to unilaterally reflect the beam to be focused with a micro dome-shape lens simply formed by high-energy melting process at the distal end of the standard single-mode fiber. The all fiber interferometric optics using a low (partial) coherence double-sided autocorrelator performing as a high-precision optical reflectometer at 1300 nm range noninvasively conducted a direct profiling of the depth information inside a biological tissue and for diagnosing brain tumors, as well as imaging subsurface depth profile for other turbid organic/inorganic samples. The optical probing imager, which normally operates in low power of 3 mW-7 mW has similar to 35 dB signal-to-noise ratio (SNR) and a similar to 15 mu m axial resolution (3-dB width of the reflected peak curve).
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Collections - Graduate School > Department of Brain and Cognitive Engineering > 1. Journal Articles
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