Transition to the two-plasmon decay for increasing plasma density scalelengths

Author

Sheng, Zheng-Ming ; Li, Y.T. ; Zhang, J. ; Veisz, L.

Author_Institution

Lab. of Opt. Phys., Chinese Acad. of Sci., Beijing, China

Volume

33

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

486

Lastpage

487

Abstract

Two plasmon decay (TPD) instability is an important mechanism for laser energy deposition in underdense plasma even for ultrashort laser pulses provided that the laser intensities are high enough. The excitation of this instability depends also heavily on the plasma density scalelength. Important features associated with the TPD are the 3/2 harmonics emission and hot electron generation. Their angular distributions from numerical simulations are presented, showing the transition of the stimulated Raman scattering to the TPD when increasing the plasma density scalelengths.

Keywords

plasma density; plasma instability; plasma light propagation; plasma simulation; plasmons; 3/2 harmonics emission; angular distributions; hot electron generation; instability excitation; laser energy deposition; laser intensities; numerical simulations; plasma density scalelengths; stimulated Raman scattering; two-plasmon decay instability; ultrashort laser pulses; underdense plasma; Electron emission; Laser excitation; Laser transitions; Numerical simulation; Optical pulses; Plasma density; Plasma simulation; Plasmons; Pulsed laser deposition; Raman scattering; Hot electron generation; two-plasmon decay; ultrashort laser pulses;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2005.845930

Filename

1420539