Hard x-ray generation by low energy, tightly focused laser pulses

Ken'ichi Takano, K. Nemoto, T. Nayuki, Y. Oishi, T. Fujii, A. Zhidkov, E. Hotta, M. Todoriki, S. Hasegawa

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The interaction of λ2 laser pulses with plasma is studied to scale the high-field physics from high power laser systems to low-energy, high-repetition-rate lasers. For this purpose, 20 mJ, 40 fs Ti:sapphire laser pulses were focused in a spot of 2.2×2.3 μm2 with a maximum intensity of I∼ 1019 W cm2. Efficient generations of energetic electrons (∼1 MeV) and hard x-rays with energies of over 100 keV were obtained by irradiating the low-energy, tightly focused laser pulses on a massive Cu target.

Original languageEnglish
Article number251502
JournalApplied Physics Letters
Volume92
Issue number25
DOIs
Publication statusPublished - 2008
Externally publishedYes

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pulses
lasers
x rays
energy
high power lasers
repetition
sapphire
physics
electrons
interactions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Takano, K., Nemoto, K., Nayuki, T., Oishi, Y., Fujii, T., Zhidkov, A., ... Hasegawa, S. (2008). Hard x-ray generation by low energy, tightly focused laser pulses. Applied Physics Letters, 92(25), [251502]. https://doi.org/10.1063/1.2945283

Hard x-ray generation by low energy, tightly focused laser pulses. / Takano, Ken'ichi; Nemoto, K.; Nayuki, T.; Oishi, Y.; Fujii, T.; Zhidkov, A.; Hotta, E.; Todoriki, M.; Hasegawa, S.

In: Applied Physics Letters, Vol. 92, No. 25, 251502, 2008.

Research output: Contribution to journalArticle

Takano, K, Nemoto, K, Nayuki, T, Oishi, Y, Fujii, T, Zhidkov, A, Hotta, E, Todoriki, M & Hasegawa, S 2008, 'Hard x-ray generation by low energy, tightly focused laser pulses', Applied Physics Letters, vol. 92, no. 25, 251502. https://doi.org/10.1063/1.2945283
Takano, Ken'ichi ; Nemoto, K. ; Nayuki, T. ; Oishi, Y. ; Fujii, T. ; Zhidkov, A. ; Hotta, E. ; Todoriki, M. ; Hasegawa, S. / Hard x-ray generation by low energy, tightly focused laser pulses. In: Applied Physics Letters. 2008 ; Vol. 92, No. 25.
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