Results 251 to 260 of about 45,670 (293)
Some of the next articles are maybe not open access.
Conical emission as cooperative fluorescence
Physical Review A, 1994We have observed conical emission from a dense, strongly driven ensemble of two-level atoms without noticeable self-focusing. We present the arguments that conical emission, unaffected by autocollimation, is due to cooperative, [hacek C]erenkov-like, spontaneous emission of collisionally perturbed, optically dressed atoms rather than to parametric wave
, Chalupczak, , Gawlik, , Zachorowski
openaire +2 more sources
Optics Communications, 1978
Abstract An experimental and theoretical study has been performed on the generating process of a cascade emission in a sample three-level system where the ground and the highest excited levels have been initially brought into a coherent superposition state by two-proton excitation.
Jumpei Okada +2 more
openaire +1 more source
Abstract An experimental and theoretical study has been performed on the generating process of a cascade emission in a sample three-level system where the ground and the highest excited levels have been initially brought into a coherent superposition state by two-proton excitation.
Jumpei Okada +2 more
openaire +1 more source
Dimensional Dependence of Cooperative Emission
Nonlinear Optics, 2015We study fluorescence of emitters coupled to radiation fields allowing for arbitrary interatomic spacing, dipole orientations, and spatial dimension, including the first complete solution in two dimensions. The asymptotic analysis shows coherence increases with reduced dimension.
Tyler Hill, Barry C. Sanders, Hui Deng
openaire +1 more source
Non‐cooperative and cooperative environmental corporate social responsibility with emission taxes
Managerial and Decision Economics, 2022This study examines emission taxes and environmental corporate social responsibility (ECSR) under cooperative and non‐cooperative regimes, respectively, and compares Cournot and Bertrand competitions. We show that (i) there exists substitutability between emission taxes and ECSR, while the cooperative case always yields lower emission taxes and higher ...
Lili Xu, Sang‐Ho Lee
openaire +1 more source
Photoinduced Emission of Cooper Pairs from Superconductors
Physical Review Letters, 2003Under certain conditions specified in this work, a Cooper pair can be emitted from a superconductor upon the absorption of one ultraviolet photon. The spectra of the excited electron pair carry direct information on the energy and angular pair correlation.
Konstantin A, Kouzakov, Jamal, Berakdar
openaire +2 more sources
Cooperative Regulation of Emissions Using Plug-in Hybrid Vehicles
2012 International Conference on Connected Vehicles and Expo (ICCVE), 2012We exploit new types of vehicles, such as Plug-in Hybrid Electric Vehicles (PHEVs), to control transport related emissions in urban environments. By appropriately choosing whether single power-split hybrid vehicles should be operated in fully electric or in fuel mode we regulate where and how much pollution is delivered into the environment, without ...
Arieh Schlote +6 more
openaire +3 more sources
Line shifts in cooperative spontaneous emission
Optics Communications, 1970Abstract Cooperative spontaneous emission, such as observed in photon echo experiments, is proved to be frequency shifted by a measurable amount with respect to the atomic transition frequency. The theory presented here is based on a renormalization procedure which rules out unobservable contributions.
F.T. Arecchi, D.M. Kim
openaire +1 more source
Basic Properties for Cooperative Emission of Radiation
Physical Review Letters, 1976Basic properties for the emission of radiation are derived from the diagonalization of the matrix (GAMMA/sub i//sub j/), where an element GAMMA/sub i//sub j/ gives the coupling between two atoms i and j via the electromagnetic field. This method gives naturally an estimate of the solid angles in which the radiation can take place.
E. Ressayre, A. Tallet
openaire +1 more source