Optimization of harmonic generation from boron plasma

Journal Article · Mon May 15 00:00:00 EDT 2006 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2201693· OSTI ID:20795811

Ganeev, R A; Baba, M; Suzuki, M; Kuroda, H ^[1]

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1. Institute of Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)

The plateau pattern of the harmonic distribution up to the 65th order ({lambda}=12.24 nm) and the 5x10{sup -7} conversion efficiency were achieved after the propagation of femtosecond pulses through the laser-produced boron plasma. The optimization of high-order harmonics generation was carried out at the focusing conditions when the confocal parameter of fundamental radiation was close to the plasma sizes. A study of cutoff energy showed its dependence on the second ionization potential of nonlinear medium. The spatial distribution of the radiation propagating through the boron plume showed the appearance of ringlike pattern at the intensities exceeding a saturated intensity of singly charged ions.

• OSTI ID: 20795811
• Journal Information: Journal of Applied Physics, Vol. 99, Issue 10; Other Information: DOI: 10.1063/1.2201693; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BORON
FOCUSING
HARMONIC GENERATION
IONIZATION
IONIZATION POTENTIAL
LASERS
NONLINEAR PROBLEMS
OPTIMIZATION
PLASMA
PULSES
SPATIAL DISTRIBUTION