High-harmonic generation from replenishing solid tapes

Shaw, Brian; Tilborg, J. van; Sokollik, Thomas; Schroeder, Carl; Leemans, Wim

doi:10.1364/cleo_qels.2013.qw1a.2

Cited by 1 publication

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“…This paper explores the use of a thin, spooled tape surface as a PM, which allows for tens of thousands of shots on target. 1,2 PMs are conventionally used to provide contrast enhancement [3][4][5][6][7] of laser pulses. With a high quality reflection and minimal pointing fluctuations, a PM can also be used as a steering optic near focus where damage to a conventional mirror would occur.…”

Section: Introductionmentioning

confidence: 99%

Reflectance characterization of tape-based plasma mirrors

et al. 2016

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Articles you may be interested inHigh repetition rate plasma mirror device for attosecond science Rev. Sci. Instrum. 85, 013104 (2014); 10.1063/1.4860035Electromagnetic pulse reflection at self-generated plasma mirrors: Laser pulse shaping and high order harmonic generation Phys. Plasmas 14, 093105 (2007); Specular reflections of relativistic laser pulses from an overdense plasma mirror (PM) were studied experimentally. The pointing stability of the PM and reflectance of the input laser were characterized. The solid material used for the PM was a VHS tape. This study was done for the magnetic and plastic sides of the VHS tape, and for input light of both s and p-polarizations. The laser pulse fluence was varied by changing the focus position relative to the tape surface, which changed the spot size at the tape. The pointing fluctuations of the reflected pulses caused by the PM were ' 1 mrad. A peak reflectance of 82% was obtained from the plastic surface of the VHS tape when focusing s-polarized light 4 mm from the tape surface (the wavefront quality was confirmed to be conserved). An analytic model was developed to understand the physics of the interaction for each tape material and polarization. Fitting of our model parameters to the experimental results allowed an estimate of the key plasma parameters such as plasma expansion velocity, ionization intensity, and fraction of absorbed laser energy. Published by AIP Publishing.

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