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Nonlinear radiation trapping in an atomic vapor excited by a strong laser pulse. / Bezuglov, N. N.; Klucharev, A. N.; Molisch, A. F.; Allegrini, M.; Fuso, F.; Stacewicz, T.

In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 55, No. 3, 01.01.1997, p. 3333-3350.

Research output: Contribution to journal › Article › peer-review

Harvard

Bezuglov, NN, Klucharev, AN, Molisch, AF, Allegrini, M, Fuso, F & Stacewicz, T 1997, 'Nonlinear radiation trapping in an atomic vapor excited by a strong laser pulse', Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, vol. 55, no. 3, pp. 3333-3350. https://doi.org/10.1103/PhysRevE.55.3333

APA

Bezuglov, N. N., Klucharev, A. N., Molisch, A. F., Allegrini, M., Fuso, F., & Stacewicz, T. (1997). Nonlinear radiation trapping in an atomic vapor excited by a strong laser pulse. Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 55(3), 3333-3350. https://doi.org/10.1103/PhysRevE.55.3333

Vancouver

Bezuglov NN, Klucharev AN, Molisch AF, Allegrini M, Fuso F, Stacewicz T. Nonlinear radiation trapping in an atomic vapor excited by a strong laser pulse. Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics. 1997 Jan 1;55(3):3333-3350. https://doi.org/10.1103/PhysRevE.55.3333

Author

Bezuglov, N. N. ; Klucharev, A. N. ; Molisch, A. F. ; Allegrini, M. ; Fuso, F. ; Stacewicz, T. / Nonlinear radiation trapping in an atomic vapor excited by a strong laser pulse. In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics. 1997 ; Vol. 55, No. 3. pp. 3333-3350.

BibTeX

@article{af80a278a4f44638960749acfa1d4068,
title = "Nonlinear radiation trapping in an atomic vapor excited by a strong laser pulse",
abstract = "We investigate radiation trapping in an atomic vapor which has been excited by a strong short laser pulse. Since the saturation of the vapor by the pulse leads to a decrease in the effective absorption coefficient, the radiation trapping becomes nonlinear. We derive approximate analytical expressions for the excited-state density in the directly excited region, the fluorescence-excited region, and the density averaged over the whole cell. Starting out from fairly simple approximate expressions based on a prescribed distribution of excited atoms, we then develop physically motivated correction factors that drastically improve the accuracy. All these expressions are given for three important cell geometries: the plane-parallel slab, the infinite cylinder, and the sphere. We compare our results to accurate numerical solutions, and find agreement within 5–10%. We then derive the decay time of the emergent radiation, and find that it can be smaller than the natural lifetime of the excited atoms, in agreement with recent experimental results obtained for sodium vapors.",
author = "Bezuglov, {N. N.} and Klucharev, {A. N.} and Molisch, {A. F.} and M. Allegrini and F. Fuso and T. Stacewicz",
year = "1997",
month = jan,
day = "1",
doi = "10.1103/PhysRevE.55.3333",
language = "English",
volume = "55",
pages = "3333--3350",
journal = "Physical Review E",
issn = "1539-3755",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Nonlinear radiation trapping in an atomic vapor excited by a strong laser pulse

AU - Bezuglov, N. N.

AU - Klucharev, A. N.

AU - Molisch, A. F.

AU - Allegrini, M.

AU - Fuso, F.

AU - Stacewicz, T.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - We investigate radiation trapping in an atomic vapor which has been excited by a strong short laser pulse. Since the saturation of the vapor by the pulse leads to a decrease in the effective absorption coefficient, the radiation trapping becomes nonlinear. We derive approximate analytical expressions for the excited-state density in the directly excited region, the fluorescence-excited region, and the density averaged over the whole cell. Starting out from fairly simple approximate expressions based on a prescribed distribution of excited atoms, we then develop physically motivated correction factors that drastically improve the accuracy. All these expressions are given for three important cell geometries: the plane-parallel slab, the infinite cylinder, and the sphere. We compare our results to accurate numerical solutions, and find agreement within 5–10%. We then derive the decay time of the emergent radiation, and find that it can be smaller than the natural lifetime of the excited atoms, in agreement with recent experimental results obtained for sodium vapors.

AB - We investigate radiation trapping in an atomic vapor which has been excited by a strong short laser pulse. Since the saturation of the vapor by the pulse leads to a decrease in the effective absorption coefficient, the radiation trapping becomes nonlinear. We derive approximate analytical expressions for the excited-state density in the directly excited region, the fluorescence-excited region, and the density averaged over the whole cell. Starting out from fairly simple approximate expressions based on a prescribed distribution of excited atoms, we then develop physically motivated correction factors that drastically improve the accuracy. All these expressions are given for three important cell geometries: the plane-parallel slab, the infinite cylinder, and the sphere. We compare our results to accurate numerical solutions, and find agreement within 5–10%. We then derive the decay time of the emergent radiation, and find that it can be smaller than the natural lifetime of the excited atoms, in agreement with recent experimental results obtained for sodium vapors.

UR - http://www.scopus.com/inward/record.url?scp=0031098046&partnerID=8YFLogxK

U2 - 10.1103/PhysRevE.55.3333

DO - 10.1103/PhysRevE.55.3333

M3 - Article

AN - SCOPUS:0031098046

VL - 55

SP - 3333

EP - 3350

JO - Physical Review E

JF - Physical Review E

SN - 1539-3755

IS - 3

ER -

ID: 36438948