Optical modulation based on tunable light absorption and amplification in metasurfaces coupled with gain medium

Vasic Borislav; Gajic Rados

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Optical modulation based on tunable light absorption and amplification in metasurfaces coupled with gain medium

机译：基于可调谐光吸收和耦合加增益介质的调节光吸收和放大的光学调制

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While previous tunable metasurfaces were based mainly on tuning of dielectric permittivity or losses in associated tunable elements, here we propose gain-assisted tunable metasurfaces as optical modulators with high ON-OFF ratio. They consist of a dye-doped film placed within metalinsulator-metal (MIM) cavities. Plasmonic modes with enhanced electric field significantly enhance both absorption and emission of light by dye molecules. As a result, it is possible to achieve the perfect absorption in MIM cavities with zero reflection, as well as to compensate losses thus achieving unit reflection. As a result, the achievable ON/OFF ratio is more than 100. (C) 2017 Optical Society of America

机译：虽然以前的可调谐元件主要基于关联可调元件中的介电介电常数或损失，但在这里，我们提出了增益辅助的可调谐元件，作为具有高开关比率的光调制器。它们由涂染料掺杂的薄膜组成，该薄膜放置在Metalineulator-Meta（MIM）腔内。具有增强电场的等离子体模式显着提高了染料分子的吸收和发射。结果，可以实现具有零反射的MIM腔中的完美吸收，以及补偿损耗，从而实现单元反射。结果，可实现的开/关比超过100.（c）2017年美国光学学会

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来源
《Optics Letters》 |2017年第11期|共4页
作者
Vasic Borislav; Gajic Rados;
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Univ Belgrade Inst Phys Belgrade Ctr Solid State Phys &

New Mat Graphene Lab GLAB Pregrevica 118 Belgrade 11080 Serbia;

Univ Belgrade Inst Phys Belgrade Ctr Solid State Phys &

New Mat Graphene Lab GLAB Pregrevica 118 Belgrade 11080 Serbia;

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正文语种 eng
中图分类计量学;光学;
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1. Optical modulation based on tunable light absorption and amplification in metasurfaces coupled with gain medium [J] . Vasic Borislav, Gajic Rados Optics Letters . 2017,第11期

机译：基于可调谐光吸收和耦合加增益介质的调节光吸收和放大的光学调制
2. Large delay tunable slow-light based on high-gain stirnulated-Brillouin-scattering amplification in optical fibers [J] . XING Liang, ZHAN Li, XIA YuXing 中国科学通报：英文版 . 2009,第021期

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3. Negative feedback optical amplification effect based on cross-gain modulation in semiconductor optical amplifiers [J] . Yoshinobu Maeda Applied Physics Letters . 2006,第10期

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4. Negative Feedback Optical Amplification Effect and Inverted Optical Triode based on Cross-gain Modulation in Semiconductor Optical Amplifiers [C] . Maeda Y. International Conference on Photonics in Switching . 2006

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6. Broadband Perfect Optical Absorption by Coupled Semiconductor Resonator-Based All-Dielectric Metasurface [O] . Zhi Weng, Yunsheng Guo 2019

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7. Study of visible light modulation based on magneto-optical thin films and dynamically tunable all dielectric metasurface embedded in nematic liquid crystal [O] . Ming-Yu Sun -1

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8. Optical parametric generation and amplification of intense tunable femtosecond pulses by a regeneratively-amplified Ti:Sapphire laser [R] . Greenfield, Wasielewski, M R 1994

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Optical modulation based on tunable light absorption and amplification in metasurfaces coupled with gain medium

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