Polarization control of high order harmonics in the EUV photon energy range

Boris Vodungbo; Anna Barszczak Sardinha; Julien Gautier; Guillaume Lambert; Constance Valentin; Magali Lozano; Grégory Iaquaniello; Franck Delmotte; Stéphane Sebban; Jan Lüning; Philippe Zeitoun

doi:10.1364/OE.19.004346

Polarization control of high order harmonics in the EUV photon energy range

Boris Vodungbo, Anna Barszczak Sardinha, Julien Gautier, Guillaume Lambert, Constance Valentin, Magali Lozano, Grégory Iaquaniello, Franck Delmotte, Stéphane Sebban, Jan Lüning, Philippe Zeitoun

Research output: Contribution to journal › Article › peer-review

Abstract

We report the generation of circularly polarized high order harmonics in the extreme ultraviolet range (18-27 nm) from a linearly polarized infrared laser (40 fs, 0.25 TW) focused into a neon filled gas cell. To circularly polarize the initially linearly polarized harmonics we have implemented a four-reflector phase-shifter. Fully circularly polarized radiation has been obtained with an efficiency of a few percents, thus being significantly more efficient than currently demonstrated direct generation of elliptically polarized harmonics. This demonstration opens up new experimental capabilities based on high order harmonics, for example, in biology and materials science. The inherent femtosecond time resolution of high order harmonic generating table top laser sources renders these an ideal tool for the investigation of ultrafast magnetization dynamics now that the magnetic circular dichroism at the absorption M-edges of transition metals can be exploited.

Original language	English
Pages (from-to)	4346-4356
Number of pages	11
Journal	Optics Express
Volume	19
Issue number	5
DOIs	https://doi.org/10.1364/OE.19.004346
Publication status	Published - 28 Feb 2011

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title = "Polarization control of high order harmonics in the EUV photon energy range",

abstract = "We report the generation of circularly polarized high order harmonics in the extreme ultraviolet range (18-27 nm) from a linearly polarized infrared laser (40 fs, 0.25 TW) focused into a neon filled gas cell. To circularly polarize the initially linearly polarized harmonics we have implemented a four-reflector phase-shifter. Fully circularly polarized radiation has been obtained with an efficiency of a few percents, thus being significantly more efficient than currently demonstrated direct generation of elliptically polarized harmonics. This demonstration opens up new experimental capabilities based on high order harmonics, for example, in biology and materials science. The inherent femtosecond time resolution of high order harmonic generating table top laser sources renders these an ideal tool for the investigation of ultrafast magnetization dynamics now that the magnetic circular dichroism at the absorption M-edges of transition metals can be exploited.",

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AU - Vodungbo, Boris

AU - Sardinha, Anna Barszczak

AU - Gautier, Julien

AU - Lambert, Guillaume

AU - Valentin, Constance

AU - Lozano, Magali

AU - Iaquaniello, Grégory

AU - Delmotte, Franck

AU - Sebban, Stéphane

AU - Lüning, Jan

AU - Zeitoun, Philippe

PY - 2011/2/28

Y1 - 2011/2/28

N2 - We report the generation of circularly polarized high order harmonics in the extreme ultraviolet range (18-27 nm) from a linearly polarized infrared laser (40 fs, 0.25 TW) focused into a neon filled gas cell. To circularly polarize the initially linearly polarized harmonics we have implemented a four-reflector phase-shifter. Fully circularly polarized radiation has been obtained with an efficiency of a few percents, thus being significantly more efficient than currently demonstrated direct generation of elliptically polarized harmonics. This demonstration opens up new experimental capabilities based on high order harmonics, for example, in biology and materials science. The inherent femtosecond time resolution of high order harmonic generating table top laser sources renders these an ideal tool for the investigation of ultrafast magnetization dynamics now that the magnetic circular dichroism at the absorption M-edges of transition metals can be exploited.

AB - We report the generation of circularly polarized high order harmonics in the extreme ultraviolet range (18-27 nm) from a linearly polarized infrared laser (40 fs, 0.25 TW) focused into a neon filled gas cell. To circularly polarize the initially linearly polarized harmonics we have implemented a four-reflector phase-shifter. Fully circularly polarized radiation has been obtained with an efficiency of a few percents, thus being significantly more efficient than currently demonstrated direct generation of elliptically polarized harmonics. This demonstration opens up new experimental capabilities based on high order harmonics, for example, in biology and materials science. The inherent femtosecond time resolution of high order harmonic generating table top laser sources renders these an ideal tool for the investigation of ultrafast magnetization dynamics now that the magnetic circular dichroism at the absorption M-edges of transition metals can be exploited.

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JO - Optics Express

JF - Optics Express

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Polarization control of high order harmonics in the EUV photon energy range

Abstract

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