Results 11 to 20 of about 5,367,169 (314)
Optical Force of Bessel Pincer Light-Sheets Beam on a Dielectric Sphere of Arbitrary Size
Nanomaterials, 2022 In the framework of Generalized Lorenz–Mie theory (GLMT), based on the expansion results of electromagnetic field radiation components of Bessel pincer light sheets beam acting on dielectric particles of arbitrary size, the expression of radiation force ...
Shu Zhang +5 more
doaj +1 more source
Near-Field Rainbow: Wideband Beam Training for XL-MIMO [PDF]
IEEE Transactions on Wireless Communications, 2022 Wideband extremely large-scale multiple-input-multiple-output (XL-MIMO) plays an important role in boosting the data rate for 6G networks. Because of the huge bandwidth and the large number of antennas, wideband XL-MIMO introduces a significant near ...
Mingyao Cui +4 more
semanticscholar +1 more source
Adversarial Laser Beam: Effective Physical-World Attack to DNNs in a Blink [PDF]
Computer Vision and Pattern Recognition, 2021 Though it is well known that the performance of deep neural networks (DNNs) degrades under certain light conditions, there exists no study on the threats of light beams emitted from some physical source as adversarial attacker on DNNs in a real-world ...
Ranjie Duan +6 more
semanticscholar +1 more source
Optics Express, 2020 It has been known that an optical vortex with a topological charge ±2 can be generated as a circularly polarized (CP) light beam propagates in a bulk uniaxial crystal, but its physical origin remains obscure which also hinders its practical applications.
Xiaohui Ling +5 more
semanticscholar +1 more source
A cold cesium beam source based on a two-dimensional magneto-optical trap
AIP Advances, 2022 A beam source is proposed for the production of an intense cold cesium atomic beam that can be used in cesium beam atomic clocks. The source is based on a two-dimensional magneto-optical trap (2D-MOT), but introduces hollow cooling and pushing lights in ...
Weibin Xie +6 more
doaj +1 more source
Propagation Dynamics of a Light Beam in a Fractional Schrödinger Equation. [PDF]
Physical Review Letters, 2015 The dynamics of wave packets in the fractional Schrödinger equation is still an open problem. The difficulty stems from the fact that the fractional Laplacian derivative is essentially a nonlocal operator.
Yiqi Zhang +5 more
semanticscholar +1 more source
Sensors, 2022 In current optical wireless communications (OWC) oriented research works, the various multiple input multiple output (MIMO) techniques are introduced and utilized to enhance the coverage performance.
Jupeng Ding +4 more
doaj +1 more source
Drug Delivery System, 2020 A HeNe laser beam incident on a sample of micron-sized spheres suspended in water scatters into a random pattern of spots of varying size, shape, and intensity.
Kayori Takahashi, Kazuo Sakurai
semanticscholar +1 more source
Communications Physics, 2023 Air lasing is a simple and promising technique to efficiently produce coherent light in the atmosphere. Yet, its capability to obtain structured light like optical vortices or vector beams is still unexplored.
Jingsong Gao +10 more
doaj +1 more source
Frontiers in Physics, 2023 When analyzing the transmission characteristics of LEDs for long-distance lighting and communication applications, the light field is commonly assumed to be fully incoherent. However, in reality, the LED light source emits partially coherent light with a
Zhifang Miao +4 more
doaj +1 more source