Results 271 to 280 of about 397,923 (311)

Single Two-Level Atom

2017
We will start our discussion with the most simple system: a single two-level atom interacting with an electromagnetic field.
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Interference spectra in a two-level atom

Canadian Journal of Physics, 1990
We have considered the interference spectra arising from the competition between a spontaneous process and one induced by a laser field in a two-level atom. Expressions for the spectral functions have been derived describing the spectra of the excited and ground states of the atom in the low- and high-intensity limit of the laser field.
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Two-Level Approximation in Atomic Systems

American Journal of Physics, 1974
In analyzing atomic systems undergoing interactions with external fields that are nearly resonant with two, and only two of the atom's energy levels, one commonly employs a two-level or resonance approximation in which all states of the atom are neglected except for the two in resonance with the field.
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QED of a Two-Level Atom and Photodetection

1990
Photodetectors are often modeled by a collection of two-level atoms interacting with a radial, ion field [1.1. In view of the importance of photodetection theory in the framework of different contexts of physics, we have performed an investigation on the QED of a two-level atom.
G. Compagno, G. M. Palma, R. Passante, F. Persico   +3 more
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The two-level atom approach

1987
info:eu-repo/semantics ...
Mandel, Paul, Lugiato, Luigi A.
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Two-Level Atoms and Spontaneous Emission

1999
The damped harmonic oscillator provides our elementary description for the electromagnetic field in a lossy cavity. The damped two-level atom will provide our elementary description for the matter with which this field interacts. In an atomic vapor, loss of energy from an excited atom may take place via spontaneous emission or inelastic collisions ...
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Optical Resonance and Two-level Atoms

Optica Acta: International Journal of Optics, 1975
(1975). Optical Resonance and Two-level Atoms. Optica Acta: International Journal of Optics: Vol. 22, No. 12, pp. 1041-1042.
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Optical bistability with two-level atoms

2008
Since the first observation of optical bistability in 1976 (1), a large number of investigations of this phenomenon have appeared in the literature (2). Of particular theoretical interest has been the bistable system composed of “two-level” atoms within an optical resonator.
Kimble, H. J., Grant, D. E., Rosenberger, A. T., Drummond, P. D.   +3 more
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Probe Spectroscopy of Two-Level Atoms

Physica Scripta, 1982
The effects of a strong standing wave field on the absorption behaviour of a weak probe field are studied. An absorptive medium is assumed to consist of stationary two-level atoms with arbitrary decay and pumping scheme. The spectrum with a resonant saturator does not exhibit emissive behaviour as in the travelling wave cases.
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Driven two-level atom

Physical Review A, 1994
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