Effective regime of electromagnetically induced transparency in a Pr3+:LaF3 crystal

Ахмеджанов, Р. А.; Bondartsev, A. A.; Гущин, Л. А.; Zelensky, I. V.

doi:10.1134/s0021364011190027

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…In ruby, Zhao et al [15] showed that it is possible to induce similar transparency via a magnetic field and a microwave field. Ichimura et al [16], Beil et al [17], Ham et al [18] and Akhmedzhanov et al [19] independently demonstrated similar effects in Pr-doped Y 2 SiO 5 [11] and LaF 3 crystals. EIT can be induced in GaAs quantum wells [20] via biexciton coherence [21] or via electron spin coherence [22].…”

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confidence: 86%

Proposed Coherent Trapping of a Population of Electrons in aC60Molecule Induced by Laser Excitation

Zhang

George

2012

Phys. Rev. Lett.

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This Letter demonstrates the possibility of generating coherent population trapping in C(60). Similar to a three-level Λ system, C(60) has a forbidden transition between the highest occupied molecular orbital (HOMO) (|a}) and the lowest unoccupied molecular orbital (LUMO) (|c}), but a dipole-allowed transition between HOMO and LUMO+1 (|b}) and between |b} and |c}. We employ two cw laser fields, one coupling and one probe. The strong coupling field is switched on first to resonantly excite the transition between |b} and |c}. After a delay, the probe is switched on; the coherent interaction between the coupling and probe fields traps the population in |a} and |c}. This forms a partially dark state in C(60), analogous to that in atomic vapors. Turning off the coupling field restores C(60)'s absorption. Pulsed lasers work as well. We use two pulses to steer the system into a dark state; when we send in a cw probe field, the electric polarization of C(60) plunges by five times, in comparison with the noncontrol case. This should be detectable experimentally.

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confidence: 86%

Proposed Coherent Trapping of a Population of Electrons in aC60Molecule Induced by Laser Excitation

Zhang

George

2012

Phys. Rev. Lett.

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“…The shift for other ranges is small possibly because the number of excited shifting particles is small. In [14], we experimentally obtained an upper estimate of 300 kHz for the Rabi frequency at a radiation power of 200 mW. In these experiments, under other similar conditions, we used a radiation power of 20 mW; cor respondingly, the estimated Rabi frequency is lower by a factor of (about 100 kHz).…”

Section: Interaction Of Spectrally Selected Groups Of Particlesmentioning

confidence: 95%

“…The spectral selection method and scheme of the experimental setup were described in detail in [14]. The selection method is based on the effect of burning of long lived spectral dips in the inhomogeneously broadened absorption line.…”

Section: Introductionmentioning

confidence: 99%