Results 11 to 20 of about 517,913 (266)
Irrotational Nanobricks Based High-Efficiency Polarization-Independence Metasurfaces
IEEE Photonics Journal, 2020 The polarization-independence optical metasurface has attracted great interests due to breaking the polarization limitations. In general, polarization-independence characteristics of metasurface almost always originates from the polarization-independence
Wei Wang +5 more
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Continuous Phase-Modulated Halftones [PDF]
IEEE Transactions on Image Processing, 2009 A generalization of periodic clustered-dot halftones is proposed, wherein the phase of the halftone spots is modulated using a secondary signal. The process is accomplished by using an analytic halftone threshold function that allows halftones to be generated with controlled phase variation in different regions of the printed page.
Basak Oztan, Gaurav Sharma 0001
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Frontiers in Materials, 2021 The technique of sound insulation has a wide range of potential applications in environment noise control and architectural acoustics. The rapid development of acoustic artificial materials has provided alternative solutions to design sound insulation ...
Jia-he Chen +10 more
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Photonics, 2023 Controllable surface plasmonic bending beams (SPBs) with propagating along bending curves have a wide range of applications in the fields of fiber sensors, optical trapping, and micro-nano manipulations.
Hang Zhang +4 more
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Frontiers in Materials, 2022 Terahertz metasurface with digital, programmable control recently gained considerable attention for its potential applications in high-speed imaging, nondestructive sensing, and wireless communication.
Chenxi Liu +4 more
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High‐Efficiency Phase and Polarization Modulation Metasurfaces
Advanced Photonics Research, 2022 Use of metasurfaces to control the characteristics of electromagnetic waves is an emerging trend at present. Multifunctional metasurfaces, which can modulate multiple wave parameters, greatly reduce the complexity and enrich the functionality of optical ...
Huan Zhao +4 more
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Dynamic Reflection Phase Modulation in Terahertz Metamaterial
IEEE Photonics Journal, 2019 In order to provide the terahertz metamaterial with dynamic phase modulation capability, a new strategy is proposed. It consists of two different unit cells involving particularly designed metallic concentric circular split ring resonators, both of which
Zeng Yangjian +4 more
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Engineering Aspheric Liquid Crystal Lenses by Using the Transmission Electrode Technique
Crystals, 2020 The transmission electrode technique has been recently proposed as a versatile method to obtain various types of liquid-crystal (LC) lenses. In this work, an equivalent electric circuit and new analytical expressions based on this technique are developed.
José Francisco Algorri +4 more
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Kerr nonlinearity-assisted quadratic microcomb
Frontiers in Physics, 2022 Generation of nonlinear frequency combs in χ(3) optical microresonators has attracted tremendous research interest during the last decade. Recently, realization of the microcomb owing to χ(2) optical nonlinearity in the microresonator promises new ...
Ke Wang +9 more
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Comparison of Three-Phase Modulation with Two-Phase and Four-Phase Modulation [PDF]
IEEE Transactions on Communications, 1980 For a constant added noise density at high signal-to-noise ratios and for the same error rate, three-phase PSK requires about 0.75 dB less energy per bit than two-phase or four-phase PSK. However, at very low signal-to-noise ratios, three-phase PSK requires about 0.74 dB more energy per bit of channel capacity than two-phase or four-phase PSK.
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