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Title

Dual-scale turbulence in filamenting laser beams at high average power

Authors
Klingebiel, Sandro
Schultze, Marcel
Metzger, Thomas
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Published in Physical Review. A. 2016, vol. 94, no. 043808
Abstract We investigate the self-induced turbulence of high repetition rate laser filaments over a wide range of average powers (1 mW to 100 W) and its sensitivity to external atmospheric turbulence. Although both externally-imposed and self-generated turbulences can have comparable magnitudes, they act on different temporal and spatial scales. While the former drives the shot-to-shot motion at the millisecond time scale, the latter acts on the 0.5 s scale. As a consequence, their effects are decoupled, preventing beam stabilization by the thermally-induced low-density channel produced by the laser filaments.
Identifiers
arXiv: 1610.03510
Note 11 pages, 5 figures
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Article (271 Kb) - public document Free access
Structures
Research groups ISE Pôle Sciences
ISE Climat
Project FP7: FILATMO
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(ISO format)
SCHUBERT, Elise et al. Dual-scale turbulence in filamenting laser beams at high average power. In: Physical Review. A, 2016, vol. 94, n° 043808. https://archive-ouverte.unige.ch/unige:88251

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Deposited on : 2016-10-17

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