An optical plane wave carries zero average orbital angular momentum. We propose that a donut-shaped microstructure, a semiconductor quantum ring, offers rather unique circumstances to experimentally observe nonzero orbital angular momentum modes of a plane wave, which are very hard to detect otherwise...
A general form is established for the energy momentum tensor for plane waves propagating in a homogeneous medium, the field equations of which are derivable from a quadratic Lagrangian function. Energy density and momentum density are proportional to frequency and the wave vector, the coefficient of...
Does a plane wave carry spin angular momentum? But it is clear that really the disc does perceive a torque from the wave. The disc will be twisted in contradiction with the paradigm. Allen and ... L Allen,MJ Padgett - 《American Journal of Physics》 被引量: 34发表: 2002年 Can ...
Optically, we employ a synthesized two-color co-rotating circular laser field configuration, in which a plane wave is used as a probing light to detect the helical phase structure of the other vortex pulses. The core of this method is to link the relative-phase structure of two-color light...
We analyze the interference field formed by two electromagnetic plane waves (with the same frequency but different wave vectors), and find that such field reveals a rich and highly non-trivial structure of the local momentum and spin densities. Despite the seemingly-planar and extensively-studied ...
We study in this paper the quantization of the momentum P of the electromagnetic field near a plane interface. The component of P parallel to the interface is K‖ (where K‖ is the real part of the wave vector). In the particular cas e of evanescent modes, this result justify the ...
We consider such a twisted electron moving in the external field of a plane electromagnetic wave and study how this field influences the electron's OAM. Being motivated by the development of high-power lasers, we focus our attention on a classically strong-field regime for which -eA/(mc)1....
The wave functions were expanded in a plane wave basis with energy cut-off of 45 Ry. Prior to band-structure calculation of MoS2 and hBN/MoS2/hBN, the structure of MoS2 was fully relaxed until the components of Hellmann–Feynman forces on the atoms were less than 10–5 Ry/Å. ...
PLANE wavefrontsCompact orbiting binaries like the black hole binary system observed in GW150914 carry large amount of orbital angular momentum. The post-ringdown compact object formed after merger of such a binary configuration has only spin angular momentum, and this results in a large orbital ...
The quantization of the spin angular momentum S of a field interacting with a plane boundary is investigated. When a good set of modes is chosen, the component of S along the momentum P is formally the same as that for a free field. In the case of the presence of an evanescent wave ...