Sensing property of thin film optical waveguide sensor based on PVC copolymer

Kyungho Kim; Haruyuki Minamitani; Kunihiro Matsumoto; Shin-Won Kang

doi:10.1117/12.298202

12 January 1998 Sensing property of thin film optical waveguide sensor based on PVC copolymer

Kyungho Kim, Haruyuki Minamitani, Kunihiro Matsumoto, Shin-Won Kang

Proceedings Volume 3278, Integrated Optic Devices II; (1998) https://doi.org/10.1117/12.298202
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

In this report, an active PVC thin film waveguide sensor which can select a specific ion and measure its concentrations is proposed. In order to investigate the applicability of this sensor, we measured calcium ion. The waveguide layer was fabricated with plasticized poly (vinyl chloride) (PVC) co-polymer matrix containing a neutral ionophore for calcium dioctyl phthalate, and chromoionophore, which plays important roles both in incident light propagation and in selective ion sensing. For this purpose, we applied the sensor to the sample solution whose CaCl₂ was gradually altered. In this study, we found that this thin film waveguide possessed good light propagation. In addition, it showed enough chemical reaction to Ca²⁺ to select Ca²⁺ and to measure its concentration. These findings suggested that the proposed active PVC optical thin film waveguide sensor was very effective in selecting Ca²⁺ and measuring its concentration. Also, it will be expected that this sensor is applicable to various ions other than Ca²⁺.

Citation Download Citation

Kyungho Kim, Haruyuki Minamitani, Kunihiro Matsumoto, and Shin-Won Kang "Sensing property of thin film optical waveguide sensor based on PVC copolymer", Proc. SPIE 3278, Integrated Optic Devices II, (12 January 1998); https://doi.org/10.1117/12.298202

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