Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Leonid L Losev"'
Publikováno v:
Quantum Electronics. 51:217-221
The SRS process in the regime of nonlinear phase modulation of laser and Stokes radiation waves is studied experimentally. The effect of the relationship between the laser and Stokes wavelengths on the value of the minimum laser pulse duration, at wh
Publikováno v:
Quantum Electronics. 50:834-837
It is shown experimentally that, under the conditions of transient stimulated Raman scattering, pumping by two successive orthogonally polarised laser pulses makes it possible to reduce the amplitude of macroscopic quantum energy fluctuations of a St
Publikováno v:
Quantum Electronics. 49:845-849
Stimulated Raman scattering (SRS) conversion of femtosecond pulses of an ytterbium laser at a wavelength of 1.03 μm is performed in compressed hydrogen under conditions of nonlinear phase modulation. Temporal compression of frequency-chirped Stokes
Publikováno v:
Quantum Electronics. 48:621-624
A time compressor of femtosecond laser pulses is developed using supercritical xenon as an active medium. Laser pulses with a duration of 300-fs and an energy of 8 μJ are compressed to 23 fs with an efficiency of 40 %.
Publikováno v:
Quantum Electronics. 48:476-480
The temporal compression of 100-fs nanojoule laser pulses using nonlinear processes in silica fibre has been studied by numerical simulation and experimentally. The simulation results demonstrate that, in the case of spectral broadening in a normal d
Publikováno v:
Instruments and Experimental Techniques. 62:223-225
An autocorrelator based on the noncollinear generation of the second harmonic in a crystal for duration measurements of single sub-10-fs laser pulses was developed. The measured pulse duration of a broadband laser system was 6.2 fs.
Publikováno v:
Laser Physics Letters. 18:125001
Publikováno v:
Quantum Electronics. 47:593-596
Publikováno v:
Quantum Electronics. 47:1-4
We have estimated the minimum laser pulse duration at which stimulated Raman scattering in gases is possible. Femtosecond Ti : sapphire laser pulses have been converted to the first Stokes in compressed nitrogen using double-pulse pumping of a gas-fi
Autor:
V S Pazyuk, S Yu Tenyakov, Valery V. Bryukhanov, A. V. Konyashchenko, Leonid L Losev, P V Kostryukov, N V Didenko
Publikováno v:
Quantum Electronics. 46:675-678
We report the temporal compression a femtosecond ytterbium laser pulse at a pulse repetition rate of 100 kHz using the effect of nonlinear self-phase modulation in a gas-filled capillary. A 260-fs laser pulse is compressed down to 17 fs with an energ