Planar broad-band and wide-angle hybrid plasmonic IMI filters with induced transmission for visible light applications

摘要

This work presents a technique for the design of visible optical filters using a hybrid plasmonic insulator-metal-insulator (IMI) structure. The proposed IMI visible light filter exhibits high transmission (similar to 91%) and an insertion loss of similar to 0.4 dB with almost an omnidirectional field-of-view (0 degrees-70 degrees), a feature that is important for light collection in miniaturized devices. The proposed design also has a minimal polarization dependent loss of 0.2 dB at an angle of incidence of 60 degrees. The effects of design parameters on the filter's performance are studied. Design rules of the filter are deduced along with physical justifications of the obtained results. (C) 2017 Optical Society of America.