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Proceedings Paper

Optical characterization of refractive index sensors based on planar waveguide Fabry-Perot Bragg grating cavity
Author(s): Sang-Mae Lee; Wan-Taek Jeong; Kyung-Chun Kim; Kyung-Jo Kim; Mincheol Oh; Thomas Chung; Simarjeet S. Saini; Mario Dagenais
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Paper Abstract

This study demonstrates the high sensitivity of high Q polymeric planar waveguide refractive index sensors used on the evanescent field. A Fabry-Perot Bragg gratings cavity was fabricated with a cavity size of 5 mm and 7 mm, respectively. The spectra of light reflected from fabricated Bragg gratings, which were butt-joined, were measured and compared with different indices of surrounding media. It was confirmed the FP Bragg gratings cavity is more sensitive than the single Bragg grating. The sensor developed in this study shows much promise in the application of biomedical diagnostics such as a bio-sensor and/or environmental monitoring systems.

Paper Details

Date Published: 20 May 2013
PDF: 5 pages
Proc. SPIE 8879, Nano-Bio Sensing, Imaging, and Spectroscopy, 887909 (20 May 2013); doi: 10.1117/12.2018636
Show Author Affiliations
Sang-Mae Lee, Busan Techno-Park (Korea, Republic of)
Wan-Taek Jeong, Pusan National Univ. (Korea, Republic of)
Kyung-Chun Kim, Pusan National Univ. (Korea, Republic of)
Kyung-Jo Kim, Pusan National Univ. (Korea, Republic of)
Mincheol Oh, Pusan National Univ. (Korea, Republic of)
Thomas Chung, Teledyne Energy Systems (United States)
Simarjeet S. Saini, Univ. of Waterloo (Canada)
Mario Dagenais, Univ. of Maryland (United States)

Published in SPIE Proceedings Vol. 8879:
Nano-Bio Sensing, Imaging, and Spectroscopy
Shin Won Kang; Seung-Han Park; Luke P. Lee; Ki-Bong Song; Yo Han Choi, Editor(s)

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