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Multi‑μJ harmonic emission energy from laser‑driven plasma
- Heissler, P. (author)
- Barna, A. (author)
- Mikhailova, J. M. (author)
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- Ma, Guangjin (author)
- Khrennikov, K. (author)
- Karsch, S. (author)
- Földes, I. B. (author)
- Tsakiris, G. D. (author)
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- (creator_code:org_t)
- 2014-12-03
- 2015
- English.
- In: Applied physics. B, Lasers and optics (Print). - : Springer. - 0946-2171 .- 1432-0649. ; 118:2, s. 195-201
- Journal article (peer-reviewed)
Abstract
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- We report on simultaneous efficiency and divergence measurements for harmonics from solid targets generated by the relativistic oscillating mirror mechanism. For a value of the normalized vector potential of aL≃1.5aL≃1.5, we demonstrate the generation of 30 μJ high-harmonic radiation in a 17±317±3 mrad divergence cone. This corresponds to a conversion efficiency of ≳≳ 10−4 in the 17–80 nm range into a well-confined beam. Presuming phase-locked harmonics, our results predict unprecedented levels of average power for a single attosecond pulse in the generated pulse train. Results of PIC simulations raise the prospect of attaining efficiencies of a few percent at higher laser intensities.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
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- Barna, A.
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- Veisz, László
- Földes, I. B.
- Tsakiris, G. D.
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