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http://dx.doi.org/10.3807/HKH.2008.19.3.193

Polymer Waveguide Based Refractive Index Sensor Using Polarimetric Interference  

Son, Geun-Sik (Department of Electronic Engineering, Kwangwoon University)
Kwon, Soon-Woo (School of Advanced Materials science & Engineering, Sungkyunkwan University)
Kim, Woo-Kyung (Nano Bio Research center, Korea Electronics Technology Institute)
Yang, Woo-Seok (Nano Bio Research center, Korea Electronics Technology Institute)
Lee, Hyung-Man (Nano Bio Research center, Korea Electronics Technology Institute)
Lee, Han-Young (Nano Bio Research center, Korea Electronics Technology Institute)
Lee, Sung-Dong (Infopia)
Lee, Sang-Shin (Department of Electronic Engineering, Kwangwoon University)
Publication Information
Korean Journal of Optics and Photonics / v.19, no.3, 2008 , pp. 193-198 More about this Journal
Abstract
A novel refractive index sensor, which consists of polymer channel waveguide overlaid with $TiO_2$ thin film, is demonstrated. To evaluate the fabricated sensor, we measured the polarimetric interference induced by concentration change of injected glycerol solution. Our experimental results show that thicker $TiO_2$ film improves the sensitivity of the polarimetric interferometer. For the fabricated waveguide with a 20 nm thick $TiO_2$ film, the measured index change to lead phase variation of $2{\pi}$ is $1.8{\times}10^{-3}$.
Keywords
Integrated optics devices; Sensors; Polymers;
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Times Cited By KSCI : 1  (Citation Analysis)
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