Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5008016 | Sensors and Actuators A: Physical | 2017 | 24 Pages |
Abstract
An all-optical, highly stable temperature sensor based built around Poly (N-vinylcarbazole)-polypyrrole/graphene oxide nanocomposites (PNVC-PPy-GO) deposited on an inline Microfiber Mach-Zehnder interferometer (IMMZI) is investigated and demonstrated. Depositing the PNVC-PPy-GO solution on the IMMZI is seen to enhance the temperature sensing stability, and the resulting wavelength shift as a result of heating the IMMZI with a heating element was linearly proportional to temperature variations, and observed to be stable and uniform. The sensitivity and resolution of the sensor after deposition improves by about 7 pm/°C and 0.18 °C respectively, as compared to the sensor before deposition. The IMMZI with PNVC-PPy-GO coating will be a highly viable candidate for sensing applications requiring highly stable and precise measurements.
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Authors
H. Ahmad, A.A. Jasim, M.J. Faruki, M.S. Rahman, K. Thambiratnam,