Results 201 to 210 of about 12,791 (220)
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XUV coherent Raman superradiance†
Journal of Modern Optics, 2008We find that intense short pulses of XUV radiation can be produced by cooperative spontaneous emission from visible or IR laser pulses driving atoms or ions. The process depends on the generation and utilization of atomic coherence as is the case in lasing without inversion.
Scully, M. +3 more
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Superradiance from Entangled Atoms
Research in Optical Sciences, 2011We discuss the radiation properties of entangled atomic sources in comparison to sources in a separable state. We explain superradiance and subradiance of entangled sources in terms of interference among different photon quantum path ways.
R. Wiegner +2 more
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Superradiance: A numerical study
Physical Review A, 1987The full set of Weisskopf-Wigner equations describing the spontaneous radiative decay of a system of up to four excited two-level atoms and many field modes is integrated numerically. Measures of collimation and of photon-photon directional correlation are evaluated and demonstrate the tendency of the photons to form a single ray.
, Duncan, , Stehle
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Physical Review A, 1995
A superradiance theory is developed for two identical hydrogenic ions (four states each) in a microtrap, as in recent experiments. The ions oscillate (micromotion) due to the trap's radio frequency (rf) electric quadrupole field. One signature of superradiance is a deviation of the two-ion average upper state decay rate \ensuremath{\gamma}\ifmmode\bar ...
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A superradiance theory is developed for two identical hydrogenic ions (four states each) in a microtrap, as in recent experiments. The ions oscillate (micromotion) due to the trap's radio frequency (rf) electric quadrupole field. One signature of superradiance is a deviation of the two-ion average upper state decay rate \ensuremath{\gamma}\ifmmode\bar ...
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American Journal of Physics, 1972
The basic features of coherent spontaneous emission, including its dependence on the square of the number of participating emitters, are reviewed. Analogies with magnetic resonance phenomena are exploited, and we explain the need to go beyond such analogies in order to treat optical emission.
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The basic features of coherent spontaneous emission, including its dependence on the square of the number of participating emitters, are reviewed. Analogies with magnetic resonance phenomena are exploited, and we explain the need to go beyond such analogies in order to treat optical emission.
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Swept-Gain Superradiance: Evolution from the Superradiant State
1984There are contrasts and similarities between swept-gain superradiance1 and Dicke superradiance2, and these have been discussed3,4. The main characteristics of the pulses radiated under conditions supportive of Dicke superradiance are quite similar to those predicted1 and observed5 for swept-Cain superradiance.
C. M. Bowden, F. P. Mattar
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Cyclotron superradiance-classical analog of Dicke superradiance
Radiophysics and Quantum Electronics, 1986V. V. Zheleznyakov +2 more
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