Results 21 to 30 of about 827,368 (345)
Binary geometric-phase holograms
Optics Express, 2023 Diffractive optics elements have exhibited many novel characteristics through various methods of employing Pancharatnam-Berry, or geometric, phase. One geometric-phase hologram (GPH) subset, consisting of a π-difference binary sampling, shows polarization-independent properties that are not present in the continuous GPH and the dynamic-phase binary ...
N. Zane Warriner, Michael J. Escuti
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Nanomaterials, 2021 The trefoil and cinquefoil vector field are of essential significance for fundamental topology properties as the Hopf link and trefoil knots in the light field.
Rui Sun +9 more
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Nanophotonics, 2020 Like amplitude, phase and frequency, polarization is one of the fundamental properties of light, which can be used to record, process and store information.
Intaravanne Yuttana, Chen Xianzhong
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All-Dielectric Meta-Surface for Multispectral Photography by Theta Modulation
Nanomaterials, 2020 The traditional theta modulator encodes input information by superimposing Ronchi sub-gratings, which is extremely easy to cause spatial channel overlap that results in bands mixing.
Meng Xiang +5 more
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Quantum Reports, 2020 We investigate the dynamics of a particle in a confined periodic system—a time-dependent oscillator confined by infinitely high and moving walls—and focus on the evolution of the phase of the wavefunction.
Mordecai Waegell, Alex Matzkin
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Photonics, 2023 As a promising platform for versatile electromagnetic (EM) manipulations, metasurfaces have drawn wide interest in recent years due to their unique EM properties and small footprints.
Jie Hu +8 more
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Experimental Measurement of Mixed State Geometric Phase by Quantum Interferometry using NMR [PDF]
, 2005 Geometric phase has been proposed as one of the promising methodologies to perform fault tolerant quantum computations. However, since decoherence plays a crucial role in such studies, understanding of mixed state geometric phase has become important ...
Aharonov +21 more
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Measuring Geometric Phase Without Interferometry [PDF]
Frontiers in Optics / Laser Science, 2018 A simple non-interferometric approach for probing the geometric phase of a structured Gaussian beam is proposed. Both the Gouy and Pancharatnam-Berry phases can be determined from the intensity distribution following a mode transformation if a part of the beam is covered at the initial plane.
Malhotra, T. +5 more
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Photonics, 2023 A chiral nematic is embedded between multilayer mirrors to obtain voltage-inducible polarized resonance spectra. Initially, the nematic director is uniformly oriented perpendicular to the mirrors’ surfaces because the chiral nematic helix is completely ...
Vladimir A. Gunyakov +4 more
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Topological Photonic Media and the Possibility of Toroidal Electromagnetic Wavepackets
Applied Sciences, 2019 This study aims to present a theoretical investigation of a feasible electromagnetic wavepacket with toroidal-type dual vortices. The paper begins with a discussion on geometric phases and angular momenta of electromagnetic vortices in free space and ...
Masaru Onoda
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