An improved transmitting multi-layer thin-film filter
Zhang Yinga),b), Qi Hong-Jia), Yi Kuia), Wang Yan-Zhia), Sui Zhanc), Shao Jian-Daa)†
       
Electric field in short and long wave-pass cutoff filter-combination device with different period numbers ( n = 20, 25, 30, 35) and oblique angles of incidence (30°, 45°, and 60°).