Analysis of the spatial filter of a dielectric multilayer film reflective cutoff filter-combination device
Zhang Yinga),b), Qi Hong-Jia), Yi Kuia), Wang Yan-Zhia), Sui Zhanc), Shao Jian-Da†a)
       
Optimized design of the long wave-pass reflecting cutoff filter at an incidence angle of 45°, showing (a) reflectance spectral curve and (b) electric field distribution at a wavelength of 1053 nm.