Formation of a Light Bullet in an Elliptically Polarized Pulse

Dormidonov, A. E.; Zaloznaya, E. D.; Kandidov, V.P.; Компанец, В. О.; Чекалин, С. В.

doi:10.1134/s0021364022010088

Cited by 7 publications

(2 citation statements)

References 26 publications

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“…tiphoton orders. This allows one to study the arrangement and parameters of plasma channels at the filamentation of femtosecond pulses using color center tracks [20,21].…”

Section: Optics and Laser Physicsmentioning

confidence: 99%

Channels of Filaments of Axially Asymmetric Optical Vortices at a Wavelength of 1800 nm in a LiF Crystal

et al. 2023

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The formation of a set of filaments and plasma channels in a femtosecond optical vortex has been studied experimentally and numerically. A longitudinal distribution of color center tracks with a length of 1 cm written in a LiF crystal by an axially asymmetric beam in the single-pulse regime has been detected experimentally for the first time. It has been shown that, at a sufficient excess of the peak power over the critical value, two hot points on the annular profile of vortex beam separated by the phase dislocation region form sequences of color center tracks; each sequence in the cross section of the beam is localized near the initial hot point. Secondary filaments and the corresponding tracks appear with an increase in the pulse energy. The parameters of femtosecond filaments in LiF have been numerically estimated.

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“…tiphoton orders. This allows one to study the arrangement and parameters of plasma channels at the filamentation of femtosecond pulses using color center tracks [20,21].…”

Section: Optics and Laser Physicsmentioning

confidence: 99%

Channels of Filaments of Axially Asymmetric Optical Vortices at a Wavelength of 1800 nm in a LiF Crystal

et al. 2023

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“…The filamentation of femtosecond laser pulses [1] leads to a high concentration of the light field [2,3], which is maintained at a distance much longer than the Rayleigh length because of the dynamic balance between the self-focusing of radiation in a medium with the Kerr nonlinearity and its defocusing on free electrons from the ionization of the medium [1,4]. The control of this process accompanying the propagation of laser pulses in gases in the femtosecond filamentation regime [5] is of great interest for applications in the transmission of the light energy to long distances, in particular, the laser probing of the atmosphere and the fabrication of remote sources of white light in the atmosphere.…”

Section: Doi: 101134/s0021364022601440mentioning

confidence: 99%

Control of Femtosecond Filamentation by Means of the Alignment of Gas Molecules by Short-Wavelength Infrared Laser Pulses

et al. 2022

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It has been demonstrated experimentally that both the single and multiple filamentation of a femtosecond laser pulse in gaseous nitrogen can be controlled by means of the nonadiabatic alignment of molecules by 1400-nm pulses. The spectral shifts and change in the duration of a pulse caused by changes in the refractive index in the revival regions of a rotational wave packet have been detected. The stable and reproducible localization of radiation into separate filaments with the subdiffraction divergence and broadening of the spectrum by more than an octave has been observed in the multiple filamentation regime upon the alignment of molecules in the direction perpendicular to the pulse polarization.

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