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Proceedings Paper

New optoelectronic sensor for measuring biologically effective irradiance
Author(s): Leonid A. Kosyachenko; Valery M. Sklyarchuk
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Paper Abstract

A new optoelectronic sensor whose spectral responsivity to UV radiation is almost identical with that of the human skin or of the eyes is presented. The sensor comprises two closely-spaced UV-sensitive Au-SiC diode, one of which is fitted with a glass filter. The photodiodes are connected to electronics that amplifies, combines and subtracts electrical signals generated by radiation in the photodiodes. The responsivity of the Au-SiC diode structure with a semitransparent gold electrode covers the whole UV spectrum, with the long-wavelength end bounded by the semiconductor bandgap. The photodiode with a filter absorbing wavelengths shorter than 315-320 nm is responsive in the UV-A region, while the difference between the electrical signals generated in the filter-containing and filter-free diodes is determined by the UV-B + IV-C radiation. The measuring of biologically effective radiation over the entire UV spectral range is achieved through combining the signal generated by UV-A radiation and the previously amplified difference signal generated by UV-B + UV-C radiation. The sensor spectral responsivity thus obtained is very close to the tabular curve of the relative spectral effectiveness of UV radiation on the normal human skin or eyes.

Paper Details

Date Published: 1 December 1997
PDF: 8 pages
Proc. SPIE 3317, International Conference on Correlation Optics, (1 December 1997); doi: 10.1117/12.295706
Show Author Affiliations
Leonid A. Kosyachenko, Chernivtsy Univ. (Ukraine)
Valery M. Sklyarchuk, Chernivtsy Univ. (Ukraine)

Published in SPIE Proceedings Vol. 3317:
International Conference on Correlation Optics
Oleg V. Angelsky, Editor(s)

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