Design and Analysis Performance HL-Narrow FWHM Band Pass Filters for Mid Infrared Transmitting Materials
Keywords:
Interference band pass filter, Mid-wave infrared (MWIR), Transmission, Multi-layers, MATLAB-softwareAbstract
Narrow band pass filters are designed to isolate a narrow region of the Mid infrared region. A new design accomplished using theoretical computation adopting MATLAB-software, already depends on characteristic matrix theory. With prescribed Stack of designs, the analyze band-pass filters wavelength range from 3000 to 5000 nm and the design wavelength 4000nm for normal incident for radiation. In this paper, a design based on 4 groups of materials for multilayers dielectric as high / low index: SiC/Si3N4, HgS \HfO2, CdS\ MgF2, PbTe\ CdTe on a ZnSe substrate were used. Simulation is used to demonstrate and examine critical conditions for narrow pass band with high optical transmittance and lower bandwidth
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