Results 31 to 40 of about 5,929,903 (194)

The Influence of Oceanic Turbulence on Fiber-Coupling Efficiency of Multi-Gaussian Shell-Mode Beams for Underwater Optical Communications

Photonics
This study theoretically investigates the coupling efficiency of multi-Gaussian Shell-mode (MGSM) beams in ocean turbulence. The expression for the fiber-coupling efficiency of the MGSM beams propagating through oceanic turbulent media is derived using ...
Xiaonan Jing, Shan Lv, Jiqian Zhang, Hui Zhang, Yaru Gao, Yangsheng Yuan, Yangjian Cai, Dongmei Wei   +7 more
doaj   +1 more source

Light Field Blind Motion Deblurring

, 2017
We study the problem of deblurring light fields of general 3D scenes captured under 3D camera motion and present both theoretical and practical contributions.
Ng, Ren, Ramamoorthi, Ravi, Srinivasan, Pratul P.   +2 more
core   +1 more source

Compactification near and on the light front [PDF]

, 1999
We address problems associated with compactification near and on the light front. In perturbative scalar field theory we illustrate and clarify the relationships among three approaches: (1) quantization on a space-like surface close to a light front; (2)
A. Bilal, A. Güijosa, A. Harindranath, A. Harindranath, C. B. Thorn, C. M. Bender, D. Chakrabarti, E. V. Prokhvatilov, F. Lenz, G. McCartor, H. C. Pauli, H. C. Pauli, H. W. L. Naus, J. B. Kogut, J. P. Vary, K. Hornbostel, L’. Martinovič, M. Burkardt, N. C. J. Schoonderwoerd, N. C. J. Schoonderwoerd, N. E. Ligterink, N. E. Ligterink, N. Seiberg, S. D. Drell, S. Fubini, S. Hellermann, S. J. Chang, S. Salmons, S. Weinberg, T. Heinzl, T. Heinzl, T. Maskawa, V. A. Franke, V. A. Franke   +33 more
core   +2 more sources

Dielectric Metasurface for Generating Longitudinally Separated Dual-Channel Focused Vectorial Structured Light

Nanomaterials
The manipulation of vector beams (VBs) with longitudinally variant polarization states is an important research topic and has potential applications in classical and quantum fields.
Haoyan Zhou, Xinyi Jiang, Wenxin Wang, Yuantao Wang, Yuchen Xu, Kaixin Zhao, Chuanfu Cheng, Chunxiang Liu   +7 more
doaj   +1 more source

Light field integration in SUGRA theories

, 2014
We revisit the integration of fields in N=1 Supergravity with the requirement that the effective theory has a reliable two-derivative supersymmetric description.
Gallego, Diego
core   +1 more source

In-fiber photoelectric device based on graphene-coated tilted fiber grating

Opto-Electronic Science, 2023
Graphene and related two-dimensional materials have attracted great research interests due to prominently optical and electrical properties and flexibility in integration with versatile photonic structures.
Biqiang Jiang, Yueguo Hou, Jiexing Wu, Yuxin Ma, Xuetao Gan, Jianlin Zhao   +5 more
doaj   +1 more source

Effective Field Theories of Light Nuclei

, 2004
Effective field theories have been developed for the description of light, shallow nuclei. I review results for two- and three-nucleon systems, and discuss their extension to halo nuclei.Comment: 10 pages, invited talk at the International Nuclear ...
Arndt, Battat, Beane, Beane, Bedaque, Bedaque, Bedaque, Bedaque, Bedaque, Bedaque, Bedaque, Bertulani, Chen, Dilg, Gabbiani, Gegelia, Głazek, Haesner, Hammer, Hammer, Kaplan, Kaplan, Kievsky, LeClair, LeClair, Meißner, Morozov, Philips, Platter, Platter, Stoks, Tilley, U. van Kolck, van Kolck, van Kolck, van Oers   +35 more
core   +1 more source

Shannon Entropy of Laguerre-Gaussian Correlated Schell-Model Beams in Underwater Turbulence

Photonics
This study examines the evolution of Shannon entropy, a key measure of uncertainty and disorder, in a Laguerre-Gaussian correlated Schell-model (LGcSM) beam under ocean turbulence.
Zhiyuan Hu, Ruilin Liu, Wenjie Yin, Jiayi Yu, Yangjian Cai, Rong Lin   +5 more
doaj   +1 more source

MCNMF-Unet: a mixture Conv-MLP network with multi-scale features fusion Unet for medical image segmentation [PDF]

PeerJ Computer Science
Recently, the medical image segmentation scheme combining Vision Transformer (ViT) and multilayer perceptron (MLP) has been widely used. However, one of its disadvantages is that the feature fusion ability of different levels is weak and lacks flexible ...
Lei Yuan, Jianhua Song, Yazhuo Fan
doaj   +2 more sources

Casimir Energies in Light of Quantum Field Theory [PDF]

, 2002
We study the Casimir problem as the limit of a conventional quantum field theory coupled to a smooth background. The Casimir energy diverges in the limit that the background forces the field to vanish on a surface.
Graham, N., Jaffe, R. L., Khemani, V., Quandt, M., Scandurra, M., Weigel, H.   +5 more
core   +2 more sources