Polarization-sensitive tunable absorber in visible and near-infrared regimes
Dasol Lee,Sung Yong Han,Yeonggyo Jeong,Duc Minh Nguyen,Gwanho Yoon,Jungho Mun,Jeonghoon Chae,Jae Hyuk Lee,Jong G. Ok,Gun Young Jung,Hui Joon Park,Kyunghoon Kim,Junsuk Rho +12 more
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TLDR
A polarization-sensitive tunable absorber that can have practical applications such as high-efficiency polarization detectors and transmissive polarizer is designed and fabricated.Abstract:
A broadband tunable absorber is designed and fabricated. The tunable absorber is comprised of a dielectric-metal-dielectric multilayer and plasmonic grating. A large size of tunable absorber device is fabricated by nano-imprinting method. The experimental results show that over 90% absorption can be achieved within visible and near-infrared regimes. Moreover, the high absorption can be controlled by changing the polarization of incident light. This polarization-sensitive tunable absorber can have practical applications such as high-efficiency polarization detectors and transmissive polarizer.read more
Citations
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Thermally robust ring-shaped chromium perfect absorber of visible light
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Metamaterial-Based Radiative Cooling: Towards Energy-Free All-Day Cooling
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Biomimetic ultra-broadband perfect absorbers optimised with reinforcement learning
TL;DR: This work designs ultra-broadband, biomimetic, perfect absorbers with various materials, based the structure of a moth's eye, by training a DDQN with moth-eye structures made up of chromium to find the optimal parameters from the ∼1 billion possible options.
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Recent Advances in Tunable and Reconfigurable Metamaterials
TL;DR: This paper reviews studies that realized tunable and reconfigurable metamaterials that are categorized by the mechanisms that cause the change: inducing temperature changes, illuminating light, inducing mechanical deformation, and applying electromagnetic fields.
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Numerical Study of an Efficient Broadband Metamaterial Absorber in Visible Light Region
TL;DR: In this paper, a two-fold symmetry metamaterial absorber structure based on double-sized axe shaped resonator exhibits the broadband absorption response over the entire visible light and apart of infrared spectrum range from 320 to 982 nm.
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