International Journal of Emerging Trends & Technology in Computer Science
A Motivation for Recent Innovation & Research
ISSN 2278-6856
www.ijettcs.org

Call for Paper, Published Articles, Indexing Infromation ULTRA-NARROW BANDPASS INTERFERENCE FILTER FOR INFRARED APPLICATION , Authors : Jamal F. Mohammad, Faisal H. Antar, Shireen M. Abed, International Journal of Emerging Trends & Technology in Computer Science (IJETTCS), www.ijettcs.org
Volume & Issue no: Volume 5, Issue 2, March - April 2016

Title:
ULTRA-NARROW BANDPASS INTERFERENCE FILTER FOR INFRARED APPLICATION
Author Name:
Jamal F. Mohammad, Faisal H. Antar, Shireen M. Abed
Abstract:
ABSTRACT In this work, a theoretical designs of ultra-narrow bandpassfilter to operate in the infrared region ( i. e. for laser CO2 ) is proposed, in order to detect spectral lines with full width at half maximum (FWHM) is less than 2 nm. This filter is constructed by coat substrate by two transparent coating material with high and low refractive index. The effect of incidence angle of the electromagnetic on the filter also studied. The results shows that, for normal incidence, high transmittance ( T ˃ 98 % ) at the center of design wavelength(λo) with very lowtransmittance in the rejection region. As the angle of incidence increase, the transmittance decreases as a result of varying in thickness of the layers. Keywords:Band-pass filters, Multilayer Optical Coating, Fabry-Perot Interference Filter.
Cite this article:
Jamal F. Mohammad, Faisal H. Antar, Shireen M. Abed , " ULTRA-NARROW BANDPASS INTERFERENCE FILTER FOR INFRARED APPLICATION " , International Journal of Emerging Trends & Technology in Computer Science (IJETTCS), Volume 5, Issue 2, March - April 2016 , pp. 129-132 , ISSN 2278-6856.
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