2020
DOI: 10.1364/ol.409586
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Numerical analysis of a thermally tunable spectrally selective absorber enabled by an all-dielectric metamirror

Abstract: In this Letter, we numerically propose a temperature-tunable, ultra-narrowband one-way perfect near-infrared radiation absorber with high transmission in the longer wavelength neighboring spectral range. We obtained this functionality by using a guided-mode resonance-based grating-waveguide metamirror that is comprised of silicon, a spacer dielectric, an absorbing semiconductor, and germanium. Within the ultra-narrow bandwidth of the guided-mode resonance excited at 1.16 µm w… Show more

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Cited by 6 publications
(2 citation statements)
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“…Metasurfaces, two-dimensional (2D) metamaterials composed of subwavelength resonators, can be utilized to efficiently tailor an incident electromagnetic wave [1,2]. They have been used in many applications, such as flat lenses [3,4], metamirrors [5,6], polarization converters [7,8], full-color printers [9], holographs [10,11], optical vortex generators [12,13], and beam splitters [14,15]. Light absorption is another eye-catching characteristic of these artificial systems [16], and metastructures with a nearly perfect light absorption characteristic are referred to as metasurface/metamaterial nearly perfect absorbers (MPAs).…”
Section: Introductionmentioning
confidence: 99%
“…Metasurfaces, two-dimensional (2D) metamaterials composed of subwavelength resonators, can be utilized to efficiently tailor an incident electromagnetic wave [1,2]. They have been used in many applications, such as flat lenses [3,4], metamirrors [5,6], polarization converters [7,8], full-color printers [9], holographs [10,11], optical vortex generators [12,13], and beam splitters [14,15]. Light absorption is another eye-catching characteristic of these artificial systems [16], and metastructures with a nearly perfect light absorption characteristic are referred to as metasurface/metamaterial nearly perfect absorbers (MPAs).…”
Section: Introductionmentioning
confidence: 99%
“…Metasurfaces, two-dimensional (2D) metamaterials composed of subwavelength resonators, can be utilized to tailor the amplitude, phase, and polarization of an incident electromagnetic wave [1,2]. Based on these outstanding characteristics, metasurfaces have been used in many applications, such as metamirrors [3,4], light absorbers [5], polarization converters, holograms, flat lenses, optical vortex generators, and beam splitters [6,7]. Beam splitters are devices that operate like prisms that split an incident polychromatic wave into its spectrum with varying angles.…”
mentioning
confidence: 99%