DNA based thin solid films and its application to optical fiber temperature sensor

Seongjin Hong; Woohyun Jung; Taeoh Kim; Kyunghwan Oh

doi:10.1117/12.2267456

23 April 2017 DNA based thin solid films and its application to optical fiber temperature sensor

Seongjin Hong, Woohyun Jung, Taeoh Kim, Kyunghwan Oh

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032355 (2017) https://doi.org/10.1117/12.2267456
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

Temperature dependent refractive index of DNA-cetyltrimethylammonium chloride (CTMA) thin-solid-film was measured 20 to 90℃ to obtain its thermo-optic coefficient of -3.6×10^-4 (dn/dT). DNA- CTMA film has high thermosoptic coefficient than other polymers. The film was deposited on coreless silica fiber (CSF) to serve as a multimode interferometer optical fiber temperature sensor. It is immersed in a water that changed temperature from 40 to 90℃. It has sensitivity of 0.25nm/℃.

Citation Download Citation

Seongjin Hong, Woohyun Jung, Taeoh Kim, and Kyunghwan Oh "DNA based thin solid films and its application to optical fiber temperature sensor", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032355 (23 April 2017); https://doi.org/10.1117/12.2267456

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