S G Rykovanov et al 2008 New J. Phys. 10 025025 doi:10.1088/1367-2630/10/2/025025
Intense single attosecond pulses from surface harmonics using the polarization gating technique
Focus on Attosecond PhysicsS G Rykovanov1,2,4, M Geissler3, J Meyer-ter-Vehn1 and G D Tsakiris1
Show affiliationsPart of Focus on Attosecond Physics
Harmonics generated at solid surfaces interacting with relativistically strong laser pulses are a promising route towards intense attosecond pulses. In order to obtain single attosecond pulses one can use few-cycle laser pulses with carrier-envelope phase stabilization. However, it appears feasible to use longer pulses using polarization gating—the technique known for a long time from gas harmonics. In this paper, we investigate in detail a specific approach to this technique on the basis of one-dimensional-particle-in-cell (1D PIC) simulations, applied to surface harmonics. We show that under realistic conditions polarization gating results in significant temporal confinement of the harmonics emission allowing thus the generation of intense single attosecond pulses. We study the parameters needed for gating only one attosecond pulse and show that this technique is applicable to both normal and oblique incidence geometry.
- PACS
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78.68.+m Optical properties of surfaces
42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
- Subjects
- Dates
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Issue 2 (February 2008)
Received 11 September 2007
Published 29 February 2008
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Intense single attosecond pulses from surface harmonics using the polarization gating technique
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