Superradiant emission of LaF3:Pr3+ in resonator

Grigoryan, G. G.; Orlov, Yu. V.; Shashkov, A. Yu.; Yukina, T. G.; Znamenskiy, N. V.

doi:10.1134/s1054660x07040329

Cited by 5 publications

(10 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present paper, it has been proved that the conditions of experiments [10][11][12][13][14][15][16] are sufficient for retaining the phase memory in spite of instability development in the form of a superradiance pulse at the 3 P 0 -3 H 6 transition. It is shown how the retained phase memory may manifest itself in the experiment.…”

Section: Introductionmentioning

confidence: 92%

“…This emission prevents the echo signal formation. A detailed experimental study of this emission was performed in two groups [11][12][13][14][15][16]. They associated the emission observed with the superradiation phenomenon.…”

Section: Introductionmentioning

confidence: 99%

“…They associated the emission observed with the superradiation phenomenon. That it was impossible to observe the two-pulse echo under the conditions of experiments [10][11][12][13][14][15][16] illustrates the foregoing proposition on the destruction of coherence in the atomic system subjected to instability development. In any case, at the frequency of the exciting pulse, by the time when the second exciting pulse become effective, the phase memory of the first exciting pulse effect had disappeared, otherwise the two-pulse echo would have been observed.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phase memory in conditions of optical instability development

Башаров¹,

Znamenskiy²

2006

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

Regularities in the transformation of optical coherence in the model three-level system, resulting from instability development and emission of a superradiance pulse, are considered. It is shown that the superradiance eliminates optical coherence on the adjacent optically allowed transitions and induces optical coherence on the optically forbidden transition. This, in turn, makes it possible to observe new effects of photon-echo type, some of which are described in the present paper.

show abstract

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phase memory in conditions of optical instability development

Башаров¹,

Znamenskiy²

2006

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

show abstract

“…The coherence time of Zeeman or hyperfine states of the ground level may reach 6 hours [71]. The above extraordinary properties render the crystals doped with rare-earth ions to be very prospective systems from the viewpoint of solid-state optical memory and fully optical data processing [72], as well as for the observation of coherent optical effects (in particular, superradiance) [14,15,56,[73][74][75][76][77][78][79].…”

Section: Promising Systemsmentioning

confidence: 99%

Cooperative emission from an ensemble of three-level Λ radiators in a cavity: An insight from the viewpoint of dynamics of nonlinear systems

Рыжов

Vasil'ev

Kosova

et al. 2017

J. Exp. Theor. Phys.

View full text Add to dashboard Cite

Cooperative radiation emitted by an ensemble of three-level optical systems with a doublet in the ground state (Λ scheme), which is placed into a cyclic cavity, is studied theoretically. In contrast to the twolevel model of emitters, this process with such a configuration of operating transitions may occur without population inversion in the whole, if the doublet is prepared at the initial instant in a superposition (coherent) state. In the ideal case of a Hamilton system, in which the cavity losses and relaxation in the radiator ensemble are disregarded, the conservation laws are derived, which allow a substantial reduction of the dimension of the phase space of the model (ℝ 11 → ℝ 5 ) and the application of methods of dynamics of nonlinear systems for analyzing the three-level superradiance under these conditions. The possibility of different (both quasiperiodic and chaotic) scenarios of the three-level superradiance is demonstrated on the basis of Poincaré's mappings. Global bifurcation of the system upon a transition from the conventional superradiance regime to inversionless one is revealed. The effects of cavity losses, as well as homogeneous and inhomogeneous broadening in the system of radiators on the regularities found are also discussed.

show abstract

“…The initial coherent state of the doublet can be created by a short low-frequency -pulse [22][23][24][25][26][27][31][32][33][34][35][36]. Systems of this kind can be realized in crystals, e.g., in a matrix doped with praseodymium ions [27][28][29][30], the ground state of which has a fine structure. It should be noted that, in systems of two-level emitters, it is frequently difficult to reach population inversion.…”

Section: Introductionmentioning

confidence: 99%

Inversionless Superradiance and the Duffing Model

Рыжов¹,

Vasil’ev²,

Kosova³

et al. 2016

Opt. Spectrosc.

View full text Add to dashboard Cite

Superradiance of three-level optical systems with a doublet in the ground state ( -scheme) placed in a high-Q cavity is studied theoretically. The conservation laws are obtained, which allow to considerably reduce the dimension of the phase space of the examined model (). In the particular case of a degenerate doublet, a mapping that makes it possible to reduce the problem of the three-level superradiance to a Duffing oscillator model ( ) is found. It is shown the possibility to initiate the superradiance generation even in the case when the population of the upper level is smaller than the total population of the lower doublet, i.e., without population inversion on the whole.

show abstract

Superradiant emission of LaF3:Pr3+ in resonator

Cited by 5 publications

References 2 publications

Phase memory in conditions of optical instability development

Phase memory in conditions of optical instability development

Cooperative emission from an ensemble of three-level Λ radiators in a cavity: An insight from the viewpoint of dynamics of nonlinear systems

Inversionless Superradiance and the Duffing Model

Contact Info

Product

Resources

About