Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2002, Volume 76, Issue 9, Pages 645–649(Mi jetpl2968)
This article is cited in 6 scientific papers (total in 6 papers)
NONLINEAR DYNAMICS
Ionization spectrum transformation and compression of powerful femtosecond laser pulses in experiments on the propagation in gas-filled dielectric capillaries
Abstract:
The propagation of an intense (I≤106I≤106 W/cm2) femtosecond laser radiation with a duration of ∼100 fs through gas-filled dielectric capillaries was studied. The radiation with a power up to 0.2 TW propagates along the paths up to 20 cm with a transmission efficiency of ∼45%. The beam transverse structure at the output is close to the capillary fundamental mode under gas-ionization conditions. The transformation of pulse spectrum was studied as a function of input intensity. It is demonstrated experimentally that the pulse is compressed to a duration of ∼30 fs due to the compensation of ionization-induced self-phase modulation in a linear dispersive element at the capillary output.
Citation:
A. A. Babin, D. V. Kartashov, A. M. Kiselev, V. V. Lozhkarev, A. M. Sergeev, A. A. Solodov, A. N. Stepanov, “Ionization spectrum transformation and compression of powerful femtosecond laser pulses in experiments on the propagation in gas-filled dielectric capillaries”, Pis'ma v Zh. Èksper. Teoret. Fiz., 76:9 (2002), 645–649; JETP Letters, 76:9 (2002), 548–552