Tunable Chevron-Beam Infrared Metamaterial

Abstract

We propose a tunable filter, which exhibits tunable resonance, single-/dual-band switching characteristics. This device is composed of chevron-beam infrared metamaterial (CBIM) to perform the tunable electromagnetic responses. By modifying the geometrical configurations, e.g. changing $l, w, \theta$, and g parameters, the largest tuning ranges of resonances are 360 nm, 270nm, 100nm, and 105 nm respectively. This study provides an effective approach to realize tunable switch, filter, sensor, polarizer applications in near-infrared wavelength range.