Results 21 to 30 of about 803,284 (272)

High-Power Ultraflat Near-Infrared Supercontinuum Generation Pumped by a Continuous Amplified Spontaneous Emission Source

IEEE Photonics Journal, 2015
A high-power ultraflat near-infrared supercontinuum (SC) is generated in a section of photonic crystal fiber (PCF) pumped by an amplified spontaneous emission (ASE) source instead of continuous-wave (CW) and pulsed lasers.
Aijun Jin, Hang Zhou, Xuanfeng Zhou, Jing Hou, Zongfu Jiang   +4 more
doaj   +1 more source

Effect of channel block on the spiking activity of excitable membranes in a stochastic Hodgkin-Huxley model [PDF]

, 2004
The influence of intrinsic channel noise on the spontaneous spiking activity of poisoned excitable membrane patches is studied by use of a stochastic generalization of the Hodgkin-Huxley model.
Chow C C, Clay J R, DeFelice L J, Fox R F, G Schmid, Gammaitoni L, Goldman M S, Hille B, Hodgkin A L, Hänggi P, Hänggi P, I Goychuk, Lecar H, LeMasson G, P Hänggi, Press W H, Skaugen E, Strassberg A F   +17 more
core   +2 more sources

Critical Components for Spontaneous Activity and Rhythm Generation in Spinal Cord Circuits in Culture

Frontiers in Cellular Neuroscience, 2020
Neuronal excitability contributes to rhythm generation in central pattern generating networks (CPGs). In spinal cord CPGs, such intrinsic excitability partly relies on persistent sodium currents (INaP), whereas respiratory CPGs additionally depend on ...
Samuel Buntschu, Anne Tscherter, Martina Heidemann, Jürg Streit   +3 more
doaj   +1 more source

Spontaneous Generation of Magnetic Field in Three Dimensional QED at Finite Temperature [PDF]

, 1997
We investigate the effects of thermal fluctuations on the spontaneous magnetic condensate in three dimensional QED coupled with P-odd Dirac fermions. Our results show that the phenomenon of the spontaneous generation of the constant background magnetic ...
Cea, Paolo, Tedesco, Luigi
core   +4 more sources

The generalized equation of generation of spontaneous electromagnetic emission in a fractal medium

Геофизический журнал, 2013
Different aspects of phenomenological description of mechanisms of generation and distribution of spontaneous component of electromagnetic emission of lithospheric origin have been considered in the paper.
V.N. Shuman
doaj   +1 more source

Spontaneous generation of eigenvalues

, 2005
We show that the action of conformal vector fields on functions on the sphere determines the spectrum of the Laplacian (or the conformal Laplacian), without further input of information.
Beckner, Bent Ørsted, Branson, Branson, Kosmann, Penrose, Strichartz, Thomas Branson   +7 more
core   +1 more source

Spontaneous polariton currents in periodic lateral chains [PDF]

, 2017
We predict spontaneous generation of superfluid polariton currents in planar microcavities with lateral periodic modulation of both potential and decay rate.
Altshuler, B. L., Kavokin, A. V., Liew, T. C. H., Nalitov, A. V., Rubo, Y. G.   +4 more
core   +2 more sources

Spontaneous Generation of Photons in Transmission of Quantum Fields in PT Symmetric Optical Systems

, 2013
We develop a rigorous mathematically consistent description of PT symmetric optical systems by using second quantization. We demonstrate the possibility of significant spontaneous generation of photons in PT symmetric systems.
G. S. Agarwal, Kenan Qu, M. Born, M. O. Scully   +3 more
core   +1 more source

Advances in nonlinear metasurfaces for imaging, quantum, and sensing applications

Nanophotonics, 2023
Metasurfaces, composed of artificial meta-atoms of subwavelength size, can support strong light–matter interaction based on multipolar resonances and plasmonics, hence offering the great capability of empowering nonlinear generation.
Zheng Ze, Rocco Davide, Ren Hang, Sergaeva Olga, Zhang Yipei, Whaley K. Birgitta, Ying Cuifeng, de Ceglia Domenico, De-Angelis Constantino, Rahmani Mohsen, Xu Lei   +10 more
doaj   +1 more source

Universal spatiotemporal dynamics of spontaneous superfluidity breakdown in the presence of synthetic gauge fields

, 2016
According to the famous Kibble-Zurek mechanism (KZM), the universality of spontaneous defect generation in continuous phase transitions (CPTs) can be understood by the critical slowing down.
Lee, Chaohong, Qin, Xizhou, Wu, Shuyuan, Xu, Jun   +3 more
core   +1 more source