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【6h】

High order harmonics wave front measurement and optimization

【摘要】 We present a full optimization of the high harmonics wave-front thanks to the use of a soft x-ray Hartmann sensor. The sensor was calibrated using high harmonics source with a λ/50 accuracy. We observed relatively good high harmonics wave-front, two times the diffraction-limit, with astigmatism as the dominant aberration for any interaction parameters. By slightly clipping the unfocused beam, it is possible to produce a diffraction-limited beam containing about 90% of the incident energy. The influence of high harmonic generation parameters was also studied in particularly the influence of the infra-red wave-front. In particular we studied the correlation between the infrared wave-front use to create high harmonics and the high harmonic wave-front. We also report wave-front measurements of a high order harmonic beam into an x-ray laser plasma amplifier at 32.8 nm.

【会议名称】 Advances in Metrology for X-Ray and EUV Optics II; Proceedings of SPIE-The International Society for Optical Engineering; vol.6704

【会议地点】San DiegoCA(US)

【作者】 J. Gautier; A.S Morlens; P. Zeitoun; E. Papalarazou; G.Rey; C. Valentin; J.P Goddet; S. Sebban; Guillaume Dovillaire; Xavier Levecq; Samuel Bucourt;

【作者单位】 Laboratoire d'Optique Appliquee, chemin de la Huniere, 91761 Palaiseau, France; Imagine Optic 18 rue Charles de Gaulle, 91400 Orsay, France;

【会议组织】

【会议召开年】 2007

【页码】P.2.1-2.6

【总页数】6

【原文格式】PDF

【正文语种】eng

【中图分类】TH741;

【关键词】;

【原文服务方】国家工程技术数字图书馆

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