Results 261 to 270 of about 193,411 (276)

Basic Properties for Cooperative Emission of Radiation

Physical Review Letters, 1976
Basic 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
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Spontaneous cooperative emission in a cavity

SPIE Proceedings, 1999
The dynamics of spontaneous cooperative emission in a cavity was investigated by numerical solution of semiclassical Maxwell-Bloch equations without slowly varying envelope approximation (in spatial variable). The dependencies of the pulse parameters on the resonator characteristics under condition of high phase relaxation of active medium are ...
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Quantum Fluctuations in Cooperative Emission of Radiation

Physical Review A, 1973
We investigate the statistical properties of the intensity of radiation emitted by $N$ two-level systems, for which the cooperation number is constant. The $l$-fold moments of the intensity are shown to obey a closed set of equations. For long times, the normalized moments are found to go up to infinity.
G. Oliver, A. Tallet
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Inter-company Cooperation on CO2 Emission Abatement

2020
Industrial sectors are the largest energy-related CO2 emission sources in China, which account for more than 70% of total emission (Liu et al. 2010). Increasing concern on climate change has brought great pressure for industrial companies to reduce their CO2 emissions. A large scale of energy-intensive industrial equipment was required to be abandoned,
Zhaohua Wang, Bin Zhang
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Cooperative and Non-Cooperative Multi-Actor Strategies of Optimizing Greenhouse Gas Emissions

1999
A simple Structural Integrated Assessment Model (SIAM) consisting of a linearized impulse response climate model coupled to an economic model is applied to the determination of optimal CO2 emission paths that minimize the time integrated sum of climate change impact and mitigation costs. The impulse response climate model is calibrated against state of
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Competing non-linear and cooperative light emissions

AIP Conference Proceedings, 1988
Two‐photon excitation (λ1,λ2) of lithium vapor generates light emission by four processes involving the 3d,3s levels: 1. Two‐photon emission, 3d−2s, 2. superfluorescence, 3d−2p, 3. parametric mixing, and 4. two−photon scattering. Upon stepwise tuning λ2, emission spectra are recorded close to 610 and 812 nm, and thus the sum frequency ω1+ω2 is scanned ...
K. -J. Boller, H. -J. Lau, J. Sparbier, P. E. Toschek   +3 more
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Cooperative Regulation of Emissions Using Plug-in Hybrid Vehicles

2012 International Conference on Connected Vehicles and Expo (ICCVE), 2012
We 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 ...
Schlote A, Häusler F, Hecker T, Bergmann A, CRISOSTOMI, EMANUELE, Radusch I, Shorten R.   +6 more
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Cooperative Two-Photon Emission in the Microcavity

1997
The one photon cooperative emission in the microcavity is very well studied in the literature [1- 4 ]. In such processes it the amplification and inhibition of spontaneous emission in function of the geometrical dimensions of microcavity are possible.
N. A. Enaki, M. A. Macovei
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Cooperative emission in polymer thin films

CLEO '97., Summaries of Papers Presented at the Conference on Lasers and Electro-Optics, 2005
W. Gellermann, S.V. Frolov, M.N. Shkunov, Z.V. Vardeny   +3 more
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Cooperative spontaneous emission with quantized atomic motion

2016
Dans cette thèse, nous étudions la dynamique coopérative d'atomes froids couplés au champ électromagnétique dans l'état du vide. L'objectif principal de nos travaux de recherche est de caractériser les conséquences de la quantification du mouvement du centre de masse des atomes sur cette dynamique, et plus particulièrement sur la dynamique interne ...
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