Phys. Rev. Lett. 72, 2887–2890 (1994)Envelope analysis of intense laser pulse self-modulation in plasmasReceived 24 September 1993; published in the issue dated 2 May 1994 An envelope equation describing laser pulse self-focusing and optical guiding in plasmas is derived and is used to analyze self-modulation. Included is the plasma wave generated by the pulse front, which leads to periodic focusing, radial energy transport, and laser envelope modulation. The onset criterion and growth rates are calculated and compared to simulations using the envelope equation and a nonlinear fluid code. For a long square pulse, onset of strong self-modulation occurs at one-half the power needed for optical guiding. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.72.2887
DOI:
10.1103/PhysRevLett.72.2887
PACS:
52.40.Nk
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.