Asymmetric absorption in asymmetric dielectric Fabry-Perot resonator with cholesteric liquid crystal layer inside

Gevorgyan, A. H.; Golik, S. S.; Vanyushkin, N. A.; Efimov, I.M.

doi:10.1016/j.optmat.2022.112111

Cited by 6 publications

(4 citation statements)

References 49 publications

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“…In the past, many technologies had been investigated to broaden the bandwidths and enhance the absorptivity of the designed absorbers, such as the effects of localized surface plasmon (LSP) resonance [ 10 , 11 ], (asymmetric) highly lossy Fabry–Perot (FP) cavity resonance [ 12 , 13 ], and propagating surface plasmon (PSP) resonance [ 11 , 14 ]. Therefore, many studies investigated the multi-layer absorbers by the combinations of the above technologies to achieve the absorbers with the ultra-wideband (UWB) in different wavelength ranges [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Peng

Tseng

et al. 2023

Nanomaterials

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In this study, an absorber with the characteristics of high absorptivity and ultra-wideband (UWB), which was ranged from the visible light range and near-infrared band, was designed and numerically analyzed using COMSOL Multiphysics® simulation software (version 6.0). The designed absorber was constructed by using two-layer square cubes stacked on the four-layer continuous plane films. The two-layer square cubes were titanium dioxide (TiO2) and titanium (Ti) (from top to bottom) and the four-layer continuous plane films were Poly(N-isopropylacrylamide) (PNIPAAm), Ti, silica (SiO2), and Ti. The analysis results showed that the first reason to cause the high absorptivity in UWB is the anti-reflection effect of top TiO2 layer. The second reason is that the three different resonances, including localized surface plasmon resonance, the propagating surface plasmon resonance, and the Fabry-Perot (FP) cavity resonance, are coexisted in the absorption peaks of the designed absorber and at least two of them can be excited at the same time. The third reason is that two FP resonant cavities were formed in the PNIPAAm and SiO2 dielectric layers. Because of the combination of the anti-reflection effect and the three different resonances, the designed absorber presented the properties of UWB and high absorptivity.

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Section: Introductionmentioning

confidence: 99%

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Peng

Tseng

et al. 2023

Nanomaterials

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“… 2 This AT property is useful in some applications such as laser systems and optical communication systems. 3 …”

Section: Introductionmentioning

confidence: 99%

“…In general, the existing literature reported AT with optical devices that either break time-inverse symmetry (i.e., break the Lorentz reciprocity) 2 , 4 or break space-inverse symmetry (structurally asymmetric). 3 , 5 The optical devices breaking the Lorentz reciprocity are made with nonreciprocal materials. The nonreciprocity of the materials is achieved by being time-dependent, 6 , 7 nonlinear, 8 , 9 , 10 or anisotropic with asymmetric permittivity and permeability tensors.…”

Section: Introductionmentioning

confidence: 99%

“… 40 , 41 , 42 Despite the various forms, these reciprocal optical devices are commonly spatial asymmetric. More importantly, the AT of reciprocal optical devices is usually numerically simulated with controlled incident light (for example, polarized light), 3 or experimentally measured under controlled incident light where polarizers are frequently used to polarize the incident light. 1 , 37 …”

Section: Introductionmentioning

confidence: 99%

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Broadband asymmetric absorption-transmission and double-band rasorber of electromagnetic waves based on superconductor ceramics metastructures-photonic crystals

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Wan,

Liao

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Asymmetric absorption in asymmetric dielectric Fabry-Perot resonator with cholesteric liquid crystal layer inside

Cited by 6 publications

References 49 publications

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Investigation of a Multi-Layer Absorber Exhibiting the Broadband and High Absorptivity in Red Light and Near-Infrared Region

Investigations on asymmetric transmittivity of optical devices and different diode-like behaviors

Broadband asymmetric absorption-transmission and double-band rasorber of electromagnetic waves based on superconductor ceramics metastructures-photonic crystals

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