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Femtosecond photon echo in dye-doped polymer film at liquid nitrogen temperature

✍ Scribed by S.V. Konturov; V.S. Lobkov; K.M. Salikhov; V.V. Samartsev; G.M. Safiullin; V.A. Zuikov

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 101 KB
Volume: 2
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200410141

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✦ Synopsis

The first observation is reported of the primary
femtosecond photon echo at a liquid nitrogen temperature in a
dye-doped polymer film at a wavelength of 780 nm. Echo signals
were generated by pulses with the duration of 130 fs. The echo
signal decay can not be described by a simple exponential
function. There is a fast decay region below 250-300 fs and a slow
decay region at longer time intervals. There were also detected
signals of the self-diffraction of exciting pulses on a
nonequilibrium population difference grating, induced in resonant
medium by these pulses.

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