Coherent absorption in optical metamaterials
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 … WebJun 3, 2024 · As another more efficient approach, a class of linear optical nanoswitches and modulators are specifically designed to meet the requirements of the coherent perfect absorption (CPA) phenomenon 22 ...
Coherent absorption in optical metamaterials
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WebOct 1, 2024 · Coherent absorption in optical metamaterials. Here we will mainly investigate the coupling mechanism of bilayered optical metamaterials with a standing … WebMar 6, 2024 · Under the illumination of two counter-propagating coherent optical beams, resonant optical absorption may be tuned continuously from 99.93% to less than 0.01% by controlling their relative phase ...
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 … 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 ...
WebIn summary, we realize an ultra-thin subwavelength coherent absorber that holds much more flexibility operating at any frequency ranging from microwave to optical regimes. The response of metamaterials can be coherently tailored by easily changing their positions … Events, conferences, and exhibitions. Each year, SPIE organizes and sponsors … SPIE publications offer the leading collection of research papers and books … For technical inquiries, member support, or any other issues, please contact … SPIE Medical Imaging, join other leaders either by submitting an abstract or … Daily optics and photonics news coverage via optics.org. Special opportunities for … Learn about SPIE Membership including member benefits, recognition, career … If you are seeking permission to use previously published material, please … 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.
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 …
WebNov 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 … sideways sentenceWebApr 11, 2014 · By tuning the coupling parameter, coherent perfect absorption, laser action and gain-induced complete reflection ($\pi$ reflector) by using an ultra-thin metamaterial can be obtained. the poet dreams of the classroomWebJan 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... sideways secWebAug 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 ... the poetess mirohttp://tonc.ece.gatech.edu/ sideways scythe fortniteWebNov 5, 2024 · Metamaterial perfect absorbers have received significant attention owing to their ability of achieving complete absorption of the electromagnetic waves with deeply subwavelength profiles. In this … sideways seats idaho lawWebThe coherent absorption of such a chiral system is generally polarization dependent and can be tuned by the relative phase between the coherent input beams. To … sideways server rack