Abstract

This paper investigates the concept of multilayered tripod frequency selective surfaces in infrared (IR). A full wave analysis based on the finite-difference time-domain technique is applied to comprehensively characterize the structure and obtain the performance for both normal and oblique waves (for TE and TM polarizations). The layered tripod structure can be envisioned as a mean to realize cascaded LC circuit configurations achieving desired filter performance. A wide stop band IR nanofilter which is almost independent of incident wave angle and polarization is demonstrated.

© 2012 Optical Society of America

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