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IJSTR >> Volume 3- Issue 10, October 2014 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Design And Fabrication Of Thin-Film Optical Filters For Mid-Infrared Spectroscopy Application

[Full Text]

 

AUTHOR(S)

Ayman Zohbi, M.A. Hasan

 

KEYWORDS

Index Terms: Fabry-Perot filter, finesse, Infrared filter, interferometer, spectroscopy, Bragg reflector.

 

ABSTRACT

Abstract: This paper reports the design, fabrication, and results of thin film Fabry-Perot interferometer (FPI) for mid-infrared spectroscopy application. The system is designed to be integrated in a small portable spectrometer for the measurement of molecular absorption or emission as well as substance that has an infrared signature. The filter is based on Fabry-Perot interferometer and the wavelength of interest is in the mid-infrared (5 to 15 micrometers). The layers were selected carefully to minimize the thickness required to meet the quarter-wave optical-thickness criteria for the interferometer.

 

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