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Coherent absorption in optical metamaterials

WebNov 15, 2024 · In this paper, we propose a tunable multiband metamaterial coherent perfect absorber, where vanadium dioxide (VO 2) square particles are periodically arranged on the two sides of polysilicon–silica–graphene–silica–polysilicon structure.The absorption spectrum of our absorber exhibits three peaks with high absorptivity which are originated … WebResearch Assistant. University of Tehran, Photonics Laboratory. Jul 2013 - Mar 20162 years 9 months. Iran. . Coherent Perfect Optical Absorbers …

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WebFeb 27, 2024 · “Coherent control” of absorption in planar (subwavelength-thickness) materials has emerged recently as a mechanism for high-contrast all-optical gating, with … WebJan 12, 2024 · Coherent metamaterial absorption in a fibre network As illustrated in Fig. 1a, the functionality of the network is based on controlling absorption of light with light on an ultrathin... psja clinic pharr https://theamsters.com

Scheme for achieving coherent perfect absorption by anisotropic ...

WebWe study theoretically the strong-field absorption of an ultrafast optical pulse by a gapped graphene monolayer. At low field amplitudes, the absorbance in pristine graphene is … WebIndex Terms—thin film coatings, metamaterial, optical A tungsten layer and an aluminum oxide layer form a metal- properties of photonic materials dielectric bilayer structure, stacking together to form a multilayer thin film structure to enhance light absorption in the I. INTRODUCTION solar optical spectrum. WebMay 1, 2016 · Coherent perfect absorption of acoustic wave Different from traditional absorbers, coherent perfect absorption (CPA) is a process that requires two or more coherent inputs 19,20,[33][34][35][36 ... horsepower for dodge charger

Phys. Rev. A 99, 011801 (R) (2024) - Coherent …

Category:Coherent perfect absorption of nonlinear matter waves

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Coherent absorption in optical metamaterials

Coherent control of optical polarization effects in …

WebMay 24, 2024 · Hexagonal boron nitride (hBN) exhibits natural hyperbolic dispersion in the infrared (IR) wavelength spectrum. In particular, the hybridization of its hyperbolic phonon polaritons (HPPs) and surface plasmon resonances (SPRs) induced by metallic nanostructures is expected to serve as a new platform for novel light manipulation. In this … WebThe incorporation of optical gain into metamaterials has recently been proposed as a way to counteract those losses. ... which may ultimately result in the realization of coherent emission of light from metamaterials and its control through the metamaterials’ unique optical properties. ... For airborne sound absorption, membrane, cavity, or ...

Coherent absorption in optical metamaterials

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WebApr 7, 2024 · Semantic Scholar extracted view of "Majorization Theory for Unitary Control of Optical Absorption and Emission" by Cheng Guo et al. ... approaches in heat management and control has triggered the fast development of fields that include conductive thermal metamaterials, nanophononics, and … Expand. 136. ... based on coherent perfect … WebAug 12, 2016 · It has also been shown recently that the manifestation of optical properties in planar metamaterials can be ‘coherently controlled’: The interference of coherent light beams on ultra-thin ...

WebMar 9, 2014 · We report on the demonstration of a femtosecond all-optical modulator providing, without nonlinearity and therefore at arbitrarily low intensity, ultrafast light-by-light control. The device engages the coherent interaction of optical waves on a metamaterial nanostructure only 30 nm thick to efficiently control absorption of near-infrared … WebOct 1, 2024 · Coherent absorption in optical metamaterials. Here we will mainly investigate the coupling mechanism of bilayered optical metamaterials with a standing …

WebApr 7, 2014 · The device engages the coherent interaction of optical waves on a metamaterial nanostructure only 30 nm thick to efficiently control absorption of near … WebJan 30, 2012 · Secondly, when VO 2 is the insulating phase, the absorption of the metamaterial structure with graphene outperforms better, and two high absorption peaks are formed, logging 100% and 90.7% at f 3 ...

WebNov 1, 2024 · Here we demonstrate the phenomenon of coherent perfect absorption of single photons in a fully fiberized ultrathin plasmonic metamaterial fabricated at the end facet of an optical fiber. Continuous control of single-photon absorption probability is achieved by driving the network between the regimes of coherent total absorption and …

WebMay 19, 2014 · The device engages the coherent interaction of optical waves on a metamaterial nanostructure only 30 nm thick to efficiently control absorption of near-infrared (750-1040 nm) femtosecond pulses ... horsepower for kids \u0026 animal sanctuaryWebNov 17, 2014 · We show multi-band coherent perfect absorption (CPA) in simple bilayered asymmetrically split ring metamaterials. The selectivity of absorption can be accomplished by separately excited... horsepower for kids fall festivalWebJan 14, 2024 · Here we demonstrate experimentally and theoretically that exploiting coherent absorption of N = 2 NOON states makes it possible to enhance the number of … psja early college san juanWebOct 25, 2024 · Coherent absorption in optical metamaterials DOI: Conference: Plasmonics III Authors: Zixiao Lan Jinhui Shi Harbin Engineering University Yuxiang li … psja early head start campusWebNov 18, 2016 · Here we propose a metadevice that controls coherent absorption of light by selective actuation of metamaterial nanostructures to provide arbitrary dynamic control over its reflectivity with sub ... horsepower for kids summer campWebNov 3, 2015 · optical negative-index material has been printed, showing a remarkable tuning range of refractive index in the communication wavelength. New frontiers are being explored as intrinsic limitations challenge the scaling of microwave metamaterial designs to optical frequencies. These novel metamaterials promise an entire new generation of … horsepower for kids \\u0026 animal sanctuaryWebJun 8, 2014 · The interaction between the metamaterial and standing wave realizes coherent perfect absorption [15][16][17][18][19] , selective mode excitation [20] , coherent control of optical activity and ... psja early start