Photonic Sensors, 2019, 9 (1): 0160, Published Online: Mar. 25, 2019
Resonant Light Scattering Toward Optical Fiber Humidity Sensors
Abstract
The deposition of tetrakis (4-sulonatophenyl) porphyrin (TPPS) thin film on optical fibers presents many possibilities for sensing applications. The J-form aggregation with a narrow and sharp spectral feature at about 490 nm and its sensitivity to humidity have been discussed; a fast change of wavelength occurs according with variation in the humidity level. The reproducibility and high sensitivity of TPPS-coated fibers, along with the capabilities of optical fibers, suggest the device as a good candidate for humidity sensing in harsh environments.
Mahboubeh DEHGHANI, Abolfazl BAHRAMPOUR, Ali Reza. Resonant Light Scattering Toward Optical Fiber Humidity Sensors[J]. Photonic Sensors, 2019, 9(1): 0160.