A technique for the numerical simulation of coherent optical responses of the photon echo type formed in resonance media with strong inhomogeneous broadening under the action of femtosecond laser pulses is developed. This ...
Zuikov V.; Kalachev A.; Samartsev V.; Rebane A.; Wild U.(1998)
Spatial and spectral regularities in the formation of photon echo signals are studied. The frequency shift of the signal of a primary photon echo with respect to the carrier frequency of excitation laser pulses that was ...
Nonequilibrium population of hyperfine sublevels of the ground electronic state of rare-earth ions is theoretically investigated for Van Vleck paramagnetic crystals subject to optical excitation with laser pulses. We discuss ...
A model of an optical neural network with associative memory using stimulated photon echo (SPE) with temporal data coding is presented. The electrical field's calculation of the SPE signals is carried out for case of ...
Theory of accumulated long-lived photon echo in Van Vleck paramagnetics is developed. From comparison with experimental data obtained in LaF 3 : Pr 3+ (the 3H 4- 3P 0 transition) the relaxation rates of population of the ...
The effect that may be exerted by an interatomic near dipole-dipole interaction upon optical transient processes in dense resonance media is analyzed. The behavior of the macroscopic polarization after a one-pulse excitation ...
We report the first observation and study of the photon echo in Er 3+:LuLiF4. The energy transition is 4 I 15/2 → 4 F 9/2 (λ = 6536 Å). The density of ErF3 is 0.025 wt %. The operation temperature is 1.9 K. Measurements ...