Sculptured thin film Solc filters for optical sensing of gas concentration
- 1 January 1999
- journal article
- Published by EDP Sciences in The European Physical Journal Applied Physics
- Vol. 5 (1) , 45-50
- https://doi.org/10.1051/epjap:1999110
Abstract
The viability of sculptured thin film (STF) implementations of Šolc fan and folded filters for optical detection and determination of gas concentration is established. A nanoscopic–to–continuum model is devised for predicting the electromagnetic (optical) response of a STF Šolc filter whose void regions are filled with a chemically non–reacting gas. Ultra–narrow band–pass features in the transmission spectrum are shown to shift with the gas concentration.Keywords
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