title: Polarization-sensitive perfect absorbers at near-infrared wavelengths.
abstract: Three different types of polarization-sensitive perfect absorbers are designed and numerically investigated. The bottle-like and the cup-like absorbers are narrowband absorbers, which strongly absorb light of a specific polarization and reflect almost all light of another polarization. By varying the geometric parameters, their absorption peaks can be tuned from 1300 nm to 2300 nm and 700 nm to 1400 nm, respectively. The broadband absorber is polarization-sensitive as well, exhibiting an average absorption efficiency of 88% over a wide range of wavelength (700-2300 nm). The proposed absorbers may have potential applications in polarization detectors, polarizers etc.
authors: State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China.
authors: Lijun
authors: L
authors: Meng
authors: Ding
authors: D
authors: Zhao
authors: Qiang
authors: Q
authors: Li
authors: Min
authors: M
authors: Qiu
mesh_terms: D000042:Absorption; D003198:Computer Simulation; D004867:Equipment Design; D008027:Light; D036103:Nanotechnology / Q000379:methods*; D012031:Refractometry / Q000295:instrumentation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*