TAPER WITH PALLADIUM COATING IN PHOTONIС CRYSTAL FIBER AS A SENSITIVE ELEMENT OF HYDROGEN SENSOR
Abstract
The electrodynamic model of a fiber-optic hydrogen sensor is proposed, in which a taper with a nanoscale palladium coating, created in a photonic crystal fiber, is used as the sensing element. Based on the model, experimental data have been processed for transmission spectra of the taper with the palladium coating of 8 nm thick at various hydrogen concentrations in a nitrogen atmosphere. It is established that an increase of the hydrogen concentration leads to a growth of integral transmittance of the sensor and practically does not affect a wavelength position of the transmittance interference maxima. The possibilities for optimizing the sensor by choosing a length of the taper waist are determined.
About the Authors
V. P. Minkovich
Centro de Investigationes en Optica
Russian Federation
Russian Federation
A. B. Sotsky
A. A. Kuleshov Mogilev State University
Russian Federation
Russian Federation
A. V. Shilov
A. A. Kuleshov Mogilev State University
Russian Federation
Russian Federation
L. I. Sotskaya
Belarusian-Russian State University
Russian Federation
Russian Federation
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Review
For citations:
Minkovich V.P., Sotsky A.B., Shilov A.V., Sotskaya L.I. TAPER WITH PALLADIUM COATING IN PHOTONIС CRYSTAL FIBER AS A SENSITIVE ELEMENT OF HYDROGEN SENSOR. Zhurnal Prikladnoii Spektroskopii. 2019;86(1):128-135. (In Russ.)
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