Results 221 to 230 of about 1,361 (252)
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Dispersive properties of electromagnetically induced transparency
Physical Review A, 1992An atomic transition that has been made transparent by applying an additional electromagnetic field exhibits a rapidly varying refractive index with zero group velocity dispersion at line center. A 10-cm-long Pb vapor cell at an atom density of 7\ifmmode\times\else\texttimes\fi{}${10}^{15}$ atoms/${\mathrm{cm}}^{3}$ and probed on its 283-nm resonance ...
, Harris, , Field, , Kasapi
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Preparation energy for electromagnetically induced transparency
Physical Review A, 1995We discuss a requirement for the laser energy that is necessary to initiate electromagnetically induced transparency: The number of photons in the coupling laser pulse must exceed the product of the number of atoms in the laser path times the ratio of the oscillator strengths of the probe and coupling laser transitions.
, Harris, , Luo
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Electromagnetically Induced Transparency
1996Electromagnetically induced transparency (EIT) is a technique for making an otherwise optically-thick medium transparent to laser radiation.’ The basic idea is to use two lasers or electromagnetic fields whose frequency difference is equal to a Raman (or two-photon) transition of the atom or molecule.
S. E. Harris +4 more
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Electromagnetically induced transparency with quantum interferometry
The Journal of Chemical Physics, 2012We have shown that electromagnetically induced transparency can be achieved by control-probe interferometry using two delayed phase-locked ultrashort pulses. Two vibrational wavepackets on the excited state, excited by two delayed phase-locked ultrashort pulses, interfere constructively or destructively leading to enhancement or suppression of ...
Anindita, Bhattacharjee +1 more
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Spontaneous emission into an electromagnetically induced transparency
Physical Review A, 1993We investigate spontaneous emission into an electromagnetically produced transparency of the form recently proposed [A. Imamoglu and S. E. Harris, Opt. Lett. 14, 1344 (1989)]. We show that the achievable radiation temperature (or brightness) at the transparency is much greater than the atomic ...
, Field, , Imamoglu
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Electromagnetically induced transparency
20051. Electromagnetically induced transparency (EIT) describes a phenomenon by which an opaque optical medium becomes transparent due to quantum interference effects. 2. EIT has been observed in atomic, molecular and solids media. 3. EIT has been widely employed to control light wave propagation, including control of the refractive index and enhancement ...
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Electromagnetically Induced Transparency with Squeezed Vacuum
Physical Review Letters, 2004The squeezed vacuum resonant on the (87)Rb D1 line (probe light) was injected into an optically dense rubidium gas cell with a coherent light (control light). The output probe light maintained its quadrature squeezing within the transparency window caused by the electromagnetically induced transparency (EIT).
Daisuke, Akamatsu +2 more
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Electromagnetically Induced Transparency: Propagation Dynamics
Physical Review Letters, 1995We describe the temporal and spatial dynamics of propagating electromagnetically induced transparency pulses in an optically thick medium. Results include pulse velocities as slow as $c/165$ with 55% transmission, strong-probe-field effects, and the observation of near diffraction-limited transmitted beam quality.
, Kasapi, , Jain, , Yin, , Harris
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Self-induced transparency assisted by electromagnetically induced transparency
Physical Review A, 2006We show the possibility of transparency and soliton effects for an intense pulse propagating in a V-type medium in which two upper resonant sublevels experience fast field-induced decay due to incoherent coupling to an upper lying state or continuum.
Nazarkin, A., Netz, R., Sauerbrey, R.
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Electromagnetically Induced Transparency in an Ideal Plasma
Physical Review Letters, 1996A process analogous to electromagnetically induced transparency in atoms is described for an ideal plasma. Two electromagnetic fields whose frequency difference is near, but not equal, to the plasma frequency will drive a longitudinal plasma oscillation whose contribution to the current density opposes the current density produced by either field, if ...
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