Broadband XUV polarimetry of high harmonics from plasma surfaces using multiple Fresnel reflections

T. Hahn*, J. Bierbach, C. Roedel, D. Hemmers, M. Yeung, B. Dromey, S. Fuchs, A. Galestian, S. Kuschel, M. Zepf, G. G. Paulus, G. Pretzler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

High-harmonic generation (HHG) by nonlinear interaction of intense laser pulses with gases or plasma surfaces is the most prominent way of creating highly coherent extreme ultraviolet (EUV/XUV) pulses. In the last years, several scientific applications have been found which require the measurement of the polarization of the harmonic radiation. We present a broadband XUV polarimeter based on multiple Fresnel reflections providing an extinction rate of 5-25 for 17-45 nm which is particularly suited for surface harmonics. The device has first been tested at a gas harmonic source providing linearly polarized XUV radiation. In a further experiment using HHG from plasma surfaces, the XUV polarimeter allowed a polarization measurement of high harmonic radiation from plasma surfaces for the first time which reveals a linear polarization state as predicted for our generation parameters. The generation and control of intense polarized XUV pulses-together with the availability of broadband polarizers in the XUV-open the way for a series of new experiments. For instance, dichroism in the XUV, elliptically polarized harmonics from aligned molecules, or the selection rules of relativistic surface harmonics can be studied with the broadband XUV polarimeter.

Original languageEnglish
Pages (from-to)241-245
Number of pages5
JournalApplied Physics B - Lasers and Optics
Volume118
Issue number2
DOIs
Publication statusPublished - Feb 2015

Keywords

  • HIGH-ORDER HARMONICS
  • VACUUM-ULTRAVIOLET
  • GENERATION
  • OPTICS
  • LASER
  • PHOTOIONIZATION
  • POLARIZATION
  • INTENSITY
  • MIRRORS
  • LIGHT

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

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