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Sculptured thin film Šolc filters for optical sensing of gas concentration

Published online by Cambridge University Press:  15 January 1999

E. Ertekin  and
A. Lakhtakia
E. Ertekin
Affiliation:
Computational & Theoretical Materials Sciences Group (CATMAS), Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802–1401, USA
A. Lakhtakia
Affiliation:
Computational & Theoretical Materials Sciences Group (CATMAS), Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802–1401, USA
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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

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 5 , Issue 1 , January 1999 , pp. 45 - 50
Copyright
© EDP Sciences, 1999

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