Results 31 to 40 of about 19,023 (293)
Wideband Polarization Insensitive Tunable Graphene-Supported Terahertz Metamaterial Absorber
IEEE Photonics Journal, 2023 Broadband Terahertz (THz) metamaterial absorbers with tunable absorption characteristics have been attracting a lot of attention due to their high demand and utilization in advanced optical systems. Therefore, we propose a single-layer graphene-supported
Muhammad Abdul Jabbar +4 more
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Incident-angle-insensitive and polarization independent polarization rotator
Optics Express, 2010 This paper proposes a method to design an incident-angle-insensitive polarization-independent polarization rotator. This polarization rotator is composed of layers of impedance-matched anisotropic metamaterial (IMAM) with each layer's optical axes gradually rotating an angle.
Mingkai, Liu +3 more
openaire +2 more sources
, 2023 SF$_6$ is widely used as a gas-insulator in high-voltage power electrical system. Detecting SF$_6$ leaks using unmanned aerial vehicle (UAV)-based thermal cameras allows efficient large-scale inspections during routine maintenance.
Yanlin Zhu (5693675) +6 more
core +1 more source
Frontiers in Physics, 2022 Optical vortex (OV) beams are ideal carriers for high-capacity optical communication, and long-wave infrared (LWIR) is the ideal wavelength band for long-range optical communication.
Naitao Song +11 more
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Polarization-Insensitive Concentric Circular Grating Filters Featuring a Couple of Resonant Peaks
IEEE Photonics Journal, 2015 We demonstrate here guided mode resonance (GMR) concentric circular grating filters (CCGFs) on an HfO2-on-silicon platform. The fabricated devices are realized with a membrane structure by completely removing the silicon substrate beneath the HfO2 device
Wei Wang +7 more
doaj +1 more source
Graphene-based polarization insensitive rasorber with tunable passband
Results in Physics, 2019 In this paper, a frequency-selective dual-polarization rasorber with absorption-transmission-absorption response is presented. The transmission window could be tunable when the chemical potentials of graphene loaded on the proposed rasorber are changed ...
Meijun Qu, Shufang Li
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Proton Assisted Insensitive Nuclei Cross Polarization [PDF]
Journal of the American Chemical Society, 2007 This Communication presents a solid-state NMR 15N−13C polarization transfer scheme applicable at high B0 and high MAS frequencies, requiring moderate rf powers and mixing time (1−6 ms). The sequence, PAIN-CP, involves the abundant nearby protons in the heteronuclear recoupling dynamics and provides a new tool for obtaining long distance 15N−13C ...
Józef R, Lewandowski +2 more
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Polarization-Independent Filter Based on 2-D Crossed Grating Under Oblique Incidence
IEEE Photonics Journal, 2018 The existing polarization-insensitive filters based on two dimensional (2-D) grating are mostly under normal incidence. However, in filtering optical devices, the normal incidence regime is usually avoided because it requires the use of beam separators ...
Danyan Wang +2 more
doaj +1 more source
Polarization-Insensitive and Broadband Optical Power Splitter With a Tunable Power Splitting Ratio
IEEE Photonics Journal, 2017 In this paper, we propose a novel tunable power splitter based on symmetric Mach–Zehnder (MZ) structure to achieve the polarization-insensitive and broadband performance.
Xiuling Deng +5 more
doaj +1 more source
, 2023 Artificial camouflage has garnered long-standing interest in both academia and industry. The metasurface-based cloak has attracted much attention due to the powerful capability of manipulating the electromagnetic wave, convenient multifunctional ...
Xiangang Luo (3222276) +6 more
core +1 more source