Indication of Local Laser Pump Depletion via Transmitted Self-Guided Laser Light

Journal Article · Thu Jan 22 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3080905· OSTI ID:21255219

Pak, A E; Marsh, K A; Ralph, J E; Lu, W; Clayton, C E; Joshi, C ^[1]

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1. Electrical Engineering, University of California Los Angeles, Los Angeles, CA. 90095 (United States)

In recent experiments it has been shown that an ultra-intense, ultra-short laser pulse can be self-guided over tens of Rayleigh lengths in an underdense plasma where {tau}(FWHM of the laser pulse) is on the order of the plasma wavelength ({lambda}{sub p}). Using an imaging spectrograph, the frequency of the transmitted laser pulse was spatially and spectrally resolved at the exit of 3, 5, and 8 mm long plasmas. The mechanism of laser pump depletion was studied by observing the amount that the transmitted laser pulse's spectrum was red shifted in wavelength through the interaction with the self-guiding plasma wave.

• OSTI ID: 21255219
• Journal Information: AIP Conference Proceedings, Vol. 1086, Issue 1; Conference: 13. advanced accelerator concepts workshop, Santa Cruz, CA (United States), 27 Jul - 2 Aug 2008; Other Information: DOI: 10.1063/1.3080905; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
LASERS
PLASMA
PLASMA WAVES
PULSES
RED SHIFT
SPECTRA
WAKEFIELD ACCELERATORS
WAVEGUIDES
WAVELENGTHS