التصميم الامثل لمرشح امرار الحزمة العريضة متعدد المرنانة

Constrain Hooke and Jeeves optimization method were used to design multicavity broad bandpass interference filter for the thermal region (8-15 µ m) with peak transmission at C02 layer wavelength (λo =10.6 µ m) based on the periodicity of lasers in high reflectors , using three non-absorbing materials. The index of refraction of the third material was replace with the aid of equivalent layer theory all introduced as initial design subroutine. Result show that such method can be considered as an alternative design method, since it support the flexibility in choosing optical thickness and layer sequences not required priory restrictions.