Results 11 to 20 of about 6,073 (241)
Wide band UV/Vis/NIR blazed-binary reflective gratings: two lithographic techniques investigation [PDF]
EPJ Web of Conferences, 2021 We report on subwavelength reflective gratings for hyperspectral applications operating in the 340 nm-1040 nm spectral range. The blazed grating period is 30 μm and is composed of 2D subwavelength binary structures with sizes in-between 120 nm and 350 nm.
Lee Mane-Si Laure +11 more
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Suspended Dielectric Mirrors at Deep Subwavelength Scale
IEEE Photonics Journal, 2018 Reduction in the thickness of air-suspended mirrors to the deep subwavelength scale can facilitate efficient optical and mechanical design. The thinner the mirror, the smaller is its mass, and the more excellent mechanical properties it presents.
Ze Lin Tan +3 more
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A Mid-Infrared Dual-Band Filter With Ultra-High Resolving Power
IEEE Photonics Journal, 2020 A mid-infrared (mid-IR) dual-band filter with ultra-high resolving power is designed and numerically investigated. It is composed of an Al2O3 layer between a gold grating and a CaF2 substrate.
Xin He +4 more
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IEEE Photonics Journal, 2019 We present the realization of a high-efficiency, compact, and thermally tunable unidirectional launcher of surface plasmon polaritons (SPPs) in a double-slit structure filled with phase change materials (PCMs). PCMs such as VO2 provide a feasible way for
Mehdi Afshari-Bavil +4 more
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Inverse designed extended depth of focus meta-optics for broadband imaging in the visible
Nanophotonics, 2021 We report an inverse-designed, high numerical aperture (∼0.44), extended depth of focus (EDOF) meta-optic, which exhibits a lens-like point spread function (PSF).
Bayati Elyas +5 more
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Apodized Focusing Fully Etched Subwavelength Grating Couplers
IEEE Photonics Journal, 2015 We experimentally demonstrate apodized focusing subwavelength grating couplers for both the fundamental transverse electric (TE00) mode and the fundamental transverse magnetic (TM00) mode.
Yun Wang +10 more
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Tunable Flat-Top Filtering Response in Cascaded Resonant Waveguide Gratings
IEEE Photonics Journal, 2021 The applicability of resonant waveguide grating (RWG)-based structures as filters to control the spectral response in an optical communication system is investigated.
Jinhua Hu +5 more
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Compact Broadband Directional Couplers Using Subwavelength Gratings
IEEE Photonics Journal, 2016 We experimentally demonstrate compact broadband directional couplers using subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm.
Yun Wang +6 more
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A Slot-Based Surface Plasmon-Polariton Waveguide With Long-Range Propagation and Superconfinement
IEEE Photonics Journal, 2012 A full-vector spectral element method (SEM) is applied to model and simulate surface plasmon-polariton (SPP) waveguides. Gauss-Lobatto-Legendre (GLL) polynomials are used to construct higher-order basis functions to achieve spectral accuracy.
G. X. Cai +4 more
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Novel Quadruple-Band Microwave Metamaterial Absorber
IEEE Photonics Journal, 2015 In this paper, we report the design, analysis, and simulation of a novel quadrupleband metamaterial absorber at microwave frequencies. The absorber is composed of delicate periodic patterned structures and a metallic background plane, which are separated
Nan Wang +6 more
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