Parametric Collective Phenomena during the Propagation of Polychromatic Laser Pulses in an Optically Dense Resonant Medium without Population Inversion

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Parametric Collective Phenomena during the Propagation of Polychromatic Laser Pulses in an Optically Dense Resonant Medium without Population Inversion. / Bagaev, S. N.; Egorov, V. S.; Mekhov, I. B.; Moroshkin, P. V.; Chekhonin, I. A.

In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 93, No. 6, 01.12.2002, p. 955-962.

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

BibTeX

@article{74ffbc5bece547e1b38c300f94ada273,

title = "Parametric Collective Phenomena during the Propagation of Polychromatic Laser Pulses in an Optically Dense Resonant Medium without Population Inversion",

abstract = "We experimentally and theoretically study the interaction of broadband polychromatic laser pulses with an optically dense resonant extended medium without population inversion. Experimental (probe field-pumping beam) measurements of the transmission and amplification spectra were carried out in the plasma of a positive neon glow-discharge column containing a large number of metastable atoms. The strong coupling in the field-matter system and the collective behavior of the atomic system in a resonant field were attributable to a high (∼1012 cm-3) density of atoms at the lower (metastable) level of the optical transitions under consideration and to a relatively low intensity of the interacting laser beams. We observed a broadband weakening of the probe field in the absence of pumping and its strengthening in the line wings in the presence of a strong field. We develop a theoretical model for the parametric amplification of collective interactions in dense extended media based on the solution of the semiclassical Maxwell-Bloch equations for conditions under which the pumping field does not destroy the dipole interaction between atoms through probe-field photons.",

author = "Bagaev, {S. N.} and Egorov, {V. S.} and Mekhov, {I. B.} and Moroshkin, {P. V.} and Chekhonin, {I. A.}",

year = "2002",

month = dec,

day = "1",

doi = "10.1134/1.1531723",

language = "English",

volume = "93",

pages = "955--962",

journal = "OPTICS AND SPECTROSCOPY",

issn = "0030-400X",

publisher = "Pleiades Publishing",

number = "6",

}

RIS

TY - JOUR

T1 - Parametric Collective Phenomena during the Propagation of Polychromatic Laser Pulses in an Optically Dense Resonant Medium without Population Inversion

AU - Bagaev, S. N.

AU - Egorov, V. S.

AU - Mekhov, I. B.

AU - Moroshkin, P. V.

AU - Chekhonin, I. A.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - We experimentally and theoretically study the interaction of broadband polychromatic laser pulses with an optically dense resonant extended medium without population inversion. Experimental (probe field-pumping beam) measurements of the transmission and amplification spectra were carried out in the plasma of a positive neon glow-discharge column containing a large number of metastable atoms. The strong coupling in the field-matter system and the collective behavior of the atomic system in a resonant field were attributable to a high (∼1012 cm-3) density of atoms at the lower (metastable) level of the optical transitions under consideration and to a relatively low intensity of the interacting laser beams. We observed a broadband weakening of the probe field in the absence of pumping and its strengthening in the line wings in the presence of a strong field. We develop a theoretical model for the parametric amplification of collective interactions in dense extended media based on the solution of the semiclassical Maxwell-Bloch equations for conditions under which the pumping field does not destroy the dipole interaction between atoms through probe-field photons.

AB - We experimentally and theoretically study the interaction of broadband polychromatic laser pulses with an optically dense resonant extended medium without population inversion. Experimental (probe field-pumping beam) measurements of the transmission and amplification spectra were carried out in the plasma of a positive neon glow-discharge column containing a large number of metastable atoms. The strong coupling in the field-matter system and the collective behavior of the atomic system in a resonant field were attributable to a high (∼1012 cm-3) density of atoms at the lower (metastable) level of the optical transitions under consideration and to a relatively low intensity of the interacting laser beams. We observed a broadband weakening of the probe field in the absence of pumping and its strengthening in the line wings in the presence of a strong field. We develop a theoretical model for the parametric amplification of collective interactions in dense extended media based on the solution of the semiclassical Maxwell-Bloch equations for conditions under which the pumping field does not destroy the dipole interaction between atoms through probe-field photons.

UR - http://www.scopus.com/inward/record.url?scp=0141560536&partnerID=8YFLogxK

U2 - 10.1134/1.1531723

DO - 10.1134/1.1531723

M3 - Article

AN - SCOPUS:0141560536

VL - 93

SP - 955

EP - 962

JO - OPTICS AND SPECTROSCOPY

JF - OPTICS AND SPECTROSCOPY

SN - 0030-400X

IS - 6

ER -

ID: 50429935