Results 21 to 30 of about 491,257 (266)
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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IEEE Photonics Journal, 2022 In this paper, we propose a novel carrier-less amplitude/phase modulation with probabilistic shaping based on the Lorenz model and superposition method (LS-PS-CAP).
Yu Gu +8 more
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IEEE Photonics Journal, 2021 Power scaling of continuous-wave, narrow-linewidth fiber lasers are limited by the onset of stimulated Brillouin scattering (SBS) which manifests at threshold as potentially damaging, peak power, backward propagating pulses.
Roopa Prakash +2 more
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Design and generation of structured array beams with shape-invariant properties
New Journal of Physics, 2023 We theoretically propose and experimentally demonstrate a flexible approach to generate an arbitrary shape-invariant structured array beam during propagation with the prescribed intensity distribution.
Yuqiu Zhang +7 more
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Deep phase modulation interferometry
Optics Express, 2010 We have developed a method to equip homodyne interferometers with the capability to operate with constant high sensitivity over many fringes for continuous real-time tracking. The method can be considered as an extension of the "J_1...J_4" methods, and its enhancement to deliver very sensitive angular measurements through Differential Wavefront Sensing
Heinzel, G. +5 more
openaire +4 more sources
Phase Modulation of Retro-Reflected Radar Echo Signal Using a Microstrip Van-Atta Array
IEEE Access, 2019 Van-atta array is able to retro-reflect the incident signal back to the income direction and, thus, it can maintain a relatively larger radar cross-section (RCS) in a large range of incidence angles.
Kunpeng Song +4 more
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Directly Phase-Modulated Light Source [PDF]
Physical Review X, 2016 14 pages, 4 ...
Yuan, Z. L. +5 more
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A New Method for Total Fat Detection in Raw Milk Based on Dual Low-Coherence Interferometer
Sensors, 2019 The present work experimentally demonstrates a multimode fiber optic sensing setup for total fat detection in raw milk samples. The optical fiber arrangement incorporates a low-coherence Fabry−Perot cavity operating in dual response.
Abraham Gastélum-Barrios +4 more
doaj +1 more source
IEEE Photonics Journal, 2013 A noise reduction method of Fresnel computer-generated hologram (CGH) using wavelet transform and smooth filter is presented. Noise in hologram is very difficult to remove because an interference pattern is recorded on a digital camera during the digital
Le Thanh Bang +4 more
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