Numerical simulations of self-channeling and filamentation of spatially pre-modulated high-power femtosecond laser pulse in air

Yu. E. Geints; A. A. Zemlyanov; O. V. Minina

doi:10.1117/12.2644367

7 December 2022 Numerical simulations of self-channeling and filamentation of spatially pre-modulated high-power femtosecond laser pulse in air

Yu. E. Geints, A. A. Zemlyanov, O. V. Minina

Author Affiliations +

Proceedings Volume 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 123410C (2022) https://doi.org/10.1117/12.2644367
Event: 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia

Abstract

The numerical simulations of propagation of high-power femtosecond laser pulses in air under conditions of superposed spatial phase modulation are carried out on the basis of the reduced form of nonlinear Schrödinger equation for time-averaged electric field envelope. Initial spatial modulations are applied to pulse wavefront profiling by a staggered phase mask with variable phase jumps between adjacent elements. It is shown that with specific phase modulations, the pulse filamentation region in air can be markedly shifted further and elongated compared to a non-modulated pulse.

Citation Download Citation

Yu. E. Geints, A. A. Zemlyanov, and O. V. Minina "Numerical simulations of self-channeling and filamentation of spatially pre-modulated high-power femtosecond laser pulse in air", Proc. SPIE 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 123410C (7 December 2022); https://doi.org/10.1117/12.2644367

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Femtosecond phenomena

High power lasers

Modulation

Plasma

Numerical simulations

Wave propagation

Ionization

Keywords/Phrases

Search In:

Publication Years