Open AccessModeling and optimum design band pass filter for mid IR region
Author(s) -
Baghdad Science Journal
Publication year - 2014
Publication title -
mağallaẗ baġdād li-l-ʿulūm
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.167
H-Index - 6
eISSN - 2411-7986
pISSN - 2078-8665
DOI - 10.21123/bsj.11.4.1459-1466
Subject(s) - filter (signal processing) , homogeneous , matlab , wavelength , computer science , substrate (aquarium) , design elements and principles , optical filter , filter design , window (computing) , electronic engineering , materials science , optics , optoelectronics , engineering , mathematics , physics , oceanography , software engineering , combinatorics , computer vision , geology , operating system
In this study, we design narrow band pass filter for window (3_5) ?m dependent on the needle optimization method , and a comparison with global designs published -Also, the effect of change parameter design on the optical performance of filter was studded and being able to overcome the difficulties of the design.In this study, the adoption of homogeneous optical properties materials as thin film depositing on a substrate of germanium at wavelength design (? = 4 ?m).For design this kind of filters we used advanced computer program (Matlab )to build a model design dependent both matrix characteristic and Needle technique. In this paper we refer to the type of Mert function , which is used for correct optical performance access to the target in very short time.