Ultra-Broadband, Lithography-Free, and Large-Scale Compatible Perfect Absorbers: The Optimum Choice of Metal layers in Metal-Insulator Multilayer Stacks
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-13837-8
Abstract: We report ultra-broadband perfect absorbers for visible and near-infrared applications that are based on multilayers of metal-insulator (MI) stacks fabricated employing straightforward layer deposition techniques and are, therefore, lithography-free and large-scale compatible. We scrutinize the… read more here.
Keywords: free large; perfect absorbers; ultra broadband; lithography free ... See more keywords
Linear and nonlinear coherent perfect absorbers on simple layers
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DOI: 10.1103/physreva.97.063850
Abstract: We consider linear and nonlinear optical coherent perfect absorbers (CPAs) in multidimensional geometries and construct explicitly the respective perfectly absorbed solutions. The multidimensional CPAs have a structure of the so-called simple layers which represent the… read more here.
Keywords: linear nonlinear; perfect absorbers; coherent perfect; cpas ... See more keywords
Implementing infrared metamaterial perfect absorbers using dispersive dielectric spacers.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.001727
Abstract: A typical metamaterial perfect absorber (MPA) is comprised of a metamaterial layer, a dielectric spacer, and a ground plane. The conventional spacer material is usually a lossy dielectric with little-dispersion for the purpose of easing… read more here.
Keywords: absorbers using; implementing infrared; dispersive dielectric; infrared metamaterial ... See more keywords
Investigation of bound states in the continuum in dual-band perfect absorbers.
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DOI: 10.1364/oe.454571
Abstract: Enhancing the light-matter interaction of two-dimensional materials in the visible and near-infrared regions is highly required in optical devices. In this paper, the optical bound states in the continuum (BICs) that can enhance the interaction… read more here.
Keywords: band; bound states; states continuum; perfect absorbers ... See more keywords
Frequency-region quantitatively adjustable Si perfect absorbers
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DOI: 10.7567/1882-0786/ab3e5e
Abstract: In this work, we demonstrate a tri-band perfect absorber with the maximal absorptance of 97% achieved in an ultra-thin silicon film metasurface (thickness, 60 nm, ~λ/10). Particularly, the resonant absorption peaks are observed to be… read more here.
Keywords: perfect absorbers; quantitatively adjustable; frequency region; region quantitatively ... See more keywords