Concentration quenching of noncoherent excitation in solutions

Sergey V. Sergeyev

Anatoly I. Burshtein, Leonid D. Zusman

Evgeny N. Bodunov, Viktor A. Malyshev

V. N. Lisin, Шегеда Анатолий Михайлович, B. M. Khabibullin +2 more

The effect of heat ballistic phonon pulses of the nanosecond duration on the inverted photon echoes in ruby with the concentration of Cr3+ ions of 0.2 wt.% and 0.03 wt.% and in LaF3:Pr3+ for 4777 A (3P0 - 3H4) transition with the concentration of Pr3+ ions of 1 wt.% at temperature 2 K is studied. The basic result of given work: observation of coherent interaction of noncoherent heat phonons with impurity (interaction without coherence loss).

BERNARD SHORE

M. V. Gryaznova, В. В. Данилов, В. Смирнов +2 more

The transmittance and luminescence of concentrated solutions of rhodamine 101 excited by laser pulses in the Stokes and anti-Stoke regions of the spectrum have been experimentally investigated. It is shown that a substantial role in forming the luminescence is played at large pump energies by collective photoinduced luminescence, which competes with induced emission. Estimates are made of the heating and cooling of solutions. © 2005 Optical Society of America