Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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.
в: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Том 93, № 6, 01.12.2002, стр. 955-962.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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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