Analysis of the spatial filter of a dielectric multilayer film reflective cutoff filter-combination device

Zhang Ying^a),^b), Qi Hong-Ji^a), Yi Kui^a), Wang Yan-Zhi^a), Sui Zhan^c), Shao Jian-Da†^a)

Initial 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.