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Optics Letters

Optics Letters


  • Vol. 22, Iss. 19 — Oct. 1, 1997
  • pp: 1491–1493

High-order harmonics from solid targets as a probe for high-density plasmas

R. Hässner, W. Theobald, S. Niedermeier, H. Schillinger, and R. Sauerbrey  »View Author Affiliations

Optics Letters, Vol. 22, Issue 19, pp. 1491-1493 (1997)

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The interaction of 100-fs Ti:sapphire laser pulses with thin foil targets was experimentally investigated at intensities exceeding 1018 W/cm2. High harmonics were observed in transmission through an overdense plasma in the direction of the incident beam. From the cutoff frequency of the harmonics an electron density of 1 × 1024 cm-3 is inferred, indicating a compression of the plasma by the ponderomotive force of the laser pulse.

© 1997 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(350.5400) Other areas of optics : Plasmas

R. Hässner, W. Theobald, S. Niedermeier, H. Schillinger, and R. Sauerbrey, "High-order harmonics from solid targets as a probe for high-density plasmas," Opt. Lett. 22, 1491-1493 (1997)

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