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Now showing items 131-140 of 170
Optical beam steering based on electromagnetically induced transparency
(American Physical Society, 2006)
We propose a scheme that provides all-optically-controlled steering of light beam. The system is based on steep dispersion of a coherently driven medium. Using the eikonal equation, we study the steering angle, the spread ...
Glucose concentration measured by the hybrid coherent anti-Stokes Raman-scattering technique
(American Physical Society, 2010)
We investigate the possibility of using a hybrid coherent anti-Stokes Raman scattering technique for noninvasive monitoring of blood glucose levels. Our technique combines instantaneous coherent excitation of several ...
Control of the Lamb shift by a driving field
(American Physical Society, 2010)
A unitary transformation approach is used to study the energy level shift of the atom coupled to both a vacuum electromagnetic field and a driving laser. The Lamb shift of the energy levels is shown to depend on the Rabi ...
Optically controlled delays for broadband pulses
(American Physical Society, 2005)
We propose a scheme that provides large controllable delays for broadband optical pulses. The system is based on the steep dispersion of a coherently driven medium, in which the narrow electromagnetically induced transparency ...
Cavity QED implementation of the discrete quantum Fourier transform
(American Physical Society, 2002)
We present a scheme for the implementation of the discrete quantum Fourier transform using cavity quantum electrodynamics. In the proposed scheme a series of atoms whose atomic coherence carries the input state passes ...
Effect of the counterrotating-wave terms on the spontaneous emission from a multilevel atom
(American Physical Society, 2009)
The spontaneous decay of a multilevel atom interacting with the electromagnetic field in free space is investigated with a unitary transformation method, which is introduced in order to include all rotating and counter-rotating ...
Atom localization via phase and amplitude control of the driving field
(American Physical Society, 2002)
Control of amplitude and phase of the driving field in an atom-field interaction leads towards the strong line narrowing and quenching in the spontaneous emission spectrum. We exploit this fact for the atom localization ...
Resonant enhancement of high-order optical nonlinearities based on atomic coherence RID A-1272-2007
(American Physical Society, 2002)
We show that the effect of coherent population trapping may result in resonant enhancement of chi((5)) or higher-order nonlinearities. The enhancement is accompanied by suppression of the other linear and nonlinear ...
Hanbury Brown-Twiss effect and thermal light ghost imaging: A unified approach
(American Physical Society, 2009)
We compare the Hanbury Brown-Twiss (HBT) and the thermal light ghost imaging schemes in both near and far fields. Both effects arise as a result of the intensity fluctuations of the thermal light and we find that the ...
Two-time intensity correlation in a driven three-level system
(American Physical Society, 1996)
We examine the various two-time fluorescence intensity correlations emitted by a driven three-level atom in a cascade configuration. For a strongly driven atom, the two intensity autocorrelation functions, one from the ...