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Circularly polarized high order harmonics in the EUV photon energy range: toward table-top nanometric magnetic imaging

机译：EUV光子能量范围内的圆极化高次谐波：朝向台式纳米磁成像

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摘要

Circularly polarized high order harmonics in the extreme ultraviolet range (18 - 27 nm) have been obtained by a two steps process. Harmonics were generated from a linearly polarized infrared laser (40 fs, 0.25 TW) focused into a neon filled gas cell. The harmonics have then been circularly polarized by a four-reflector phase-shifter. The polarization of the harmonics have been measured using a rotating multilayer broadband mirror set at an incidence angle of 45°. Fully circularly polarized radiation has been obtained with an efficiency of a few percents. This is 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 materials science for time-resolved nanometric magnetic imaging.
机译：通过两步法已获得了极紫外范围（18-27 nm）内的圆极化高次谐波。谐波是由聚焦到氖气池中的线偏振红外激光（40 fs，0.25 TW）产生的。然后，谐波已通过四反射镜移相器圆偏振。谐波的偏振已经使用设置为45°入射角的旋转多层宽带反射镜进行了测量。已获得百分之几的效率的全圆偏振辐射。这比目前证明的直接产生椭圆极化谐波要有效得多。该演示打开了基于高次谐波的新实验功能，例如，用于时间分辨纳米磁成像的材料科学。

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  • 来源
    《》|2011年|p.81400D.1-81400D.11|共11页
  • 会议地点 San Diego CA(US)
  • 作者

    Boris Vodungbo; Anna Barszczak Sardinha; Julien Gautier; Guillaume Lambert; Stephane Sebban; Jan Luening; Philippe Zeitoun;

  • 作者单位

    Laboratoire d'Optique Appliquee, ENSTA ParisTech - CNRS - Ecole polytechnique, Chemin de la Huniere, 91761 Palaiseau, FRANCE;

    Laboratoire d'Optique Appliquee, ENSTA ParisTech - CNRS - Ecole polytechnique, Chemin de la Huniere, 91761 Palaiseau, FRANCE;

    Laboratoire d'Optique Appliquee, ENSTA ParisTech - CNRS - Ecole polytechnique, Chemin de la Huniere, 91761 Palaiseau, FRANCE;

    Laboratoire d'Optique Appliquee, ENSTA ParisTech - CNRS - Ecole polytechnique, Chemin de la Huniere, 91761 Palaiseau, FRANCE;

    Laboratoire d'Optique Appliquee, ENSTA ParisTech - CNRS - Ecole polytechnique, Chemin de la Huniere, 91761 Palaiseau, FRANCE;

    Laboratoire de Chimie Physique - Matiere et Rayonnement, Universite Pierre et Marie Curie - CNRS,11 rue Pierre et Marie Curie, 75005 Paris, FRANCE;

    Laboratoire d'Optique Appliquee, ENSTA ParisTech - CNRS - Ecole polytechnique, Chemin de la Huniere, 91761 Palaiseau, FRANCE;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用光学;
  • 关键词

    high order harmonics; circular polarization; EUV polarimetry;

    机译：高次谐波；圆极化EUV旋光法;

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