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Dynamical processes of vortex electrons in intense laser field
上海师范大学学报. 自然科学版, 2023 In this paper, the dynamic processes of strong vortex electrons with inherent orbital angular momentum in intense laser are studied. The evolution of the intrinsic orbital and spin angular momentum of a vortex electron in a chirped laser field is studied
CHEN Jiading, CHEN Yueyue
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Torque of guided light on an atom near an optical nanofiber [PDF]
, 2019 We calculate analytically and numerically the axial orbital and spin torques of guided light on a two-level atom near an optical nanofiber. We show that the generation of these torques is governed by the angular momentum conservation law in the Minkowski
Busch, Thomas, Kien, Fam Le
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Optical communication beyond orbital angular momentum [PDF]
Scientific Reports, 2016 AbstractMode division multiplexing (MDM) is mooted as a technology to address future bandwidth issues and has been successfully demonstrated in free space using spatial modes with orbital angular momentum (OAM). To further increase the data transmission rate, more degrees of freedom are required to form a densely packed mode space.
Trichili, Abderrahmen +6 more
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Orbital Angular Momentum-Entanglement Frequency Transducer [PDF]
Physical Review Letters, 2016 Entanglement is a vital resource for realizing many tasks such as teleportation, secure key distribution, metrology and quantum computations. To effectively build entanglement between different quantum systems and share information between them, a frequency transducer to convert between quantum states of different wavelengths while retaining its ...
Zhou, Zhi-Yuan +8 more
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High Orbital Angular Momentum Harmonic Generation [PDF]
Physical Review Letters, 2016 We identify and explore a high orbital angular momentum (OAM) harmonics generation and amplification mechanism that manipulates the OAM independently of any other laser property, by preserving the initial laser wavelength, through stimulated Raman backscattering in a plasma.
Vieira, J. +7 more
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Dual-wavelength laser with topological charge
AIP Advances, 2013 We demonstrate the simultaneous oscillation of different photons with equal orbital angular momentum in solid-state lasers for the first time to our knowledge.
Haohai Yu +7 more
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Orbital Angular Momentum Mode Multiplexer Based on Multimode Micro-Ring Resonator with Angular Gratings [PDF]
, 2016 We demonstrate silicon photonic orbital angular momentum multiplexing devices based on mulitmode microring resonator. Up to four optical beams carrying different orbital angular momentum states can be selectively excited from different input ...
Cai, Xinlun +6 more
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Classification of magnetic vortices by angular momentum conservation
Physical Review Research, 2021 Superfluid vortices are quantum excitations carrying a quantized amount of orbital angular momentum in a phase where global symmetry is spontaneously broken.
Kenji Fukushima +2 more
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Orbital angular momentum 25 years on [invited] [PDF]
, 2017 Twenty-five years ago Allen, Beijersbergen, Spreeuw, and Woerdman published their seminal paper establishing that light beams with helical phase-fronts carried an orbital angular momentum. Previously orbital angular momentum had been associated only with
Padgett, Miles J.
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Nested SU(2) symmetry of photonic orbital angular momentum
Frontiers in Physics, 2023 The polarization state is described by a quantum mechanical two-level system, which is known as special unitary group of degree 2 [SU(2)]. Polarization is attributed to an internal spin degree of freedom inherent to photons, while photons also possess an
Shinichi Saito
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