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首页> 外文会议>Conference on Soft X-Ray Lasers and Applications V; Aug 6-7, 2003; San Diego, California, USA >Far-field, near-field and interference patterns imaging in LiF crystals from a 46.9-nm capillary discharge pumped soft-x-ray laser
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Far-field, near-field and interference patterns imaging in LiF crystals from a 46.9-nm capillary discharge pumped soft-x-ray laser

机译：来自46.9 nm毛细管放电泵浦软X射线激光器的LiF晶体中的远场，近场和干涉图成像

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摘要

The recent progress in the development of the tabletop soft x-ray lasers pumped by capillary discharges has opened the possibility of the widespread use of these coherent sources for applications. In this paper, we present the latest results achieved in our laboratory concerning the optimization of a 46.9nm capillary discharge pumped soft x-ray laser and the imaging of the laser beam on Lithium Fluoride (LiF, films), which appears to be a new promising x-ray detector. The use of LiF allows a high spatial resolution (smaller than 1μm) on large areas, high-contrast imaging and simple manipulation. The laser, which is pumped by 18-20kA, 150-180ns long current pulses at a repetition rate of 0.1 Hz, is produced in 3.2mm diameter up to 45cm length alumina capillary tubes filled with Ar at the initial gas pressure of 300-600mTorr. At the capillary lengths examined, the laser is operating in the saturation regime giving a output energy of about 300μJ per pulse and high coherence degree.
机译：通过毛细管放电泵浦的台式软X射线激光器的最新开发进展为这些相干光源在应用中广泛使用提供了可能性。在本文中，我们介绍了在实验室中获得的有关46.9nm毛细管放电泵浦软X射线激光器的优化以及在氟化锂（LiF，胶片）上的激光束成像的最新结果，这似乎是一个新的很有前途的X射线探测器。 LiF的使用可在大面积上实现高空间分辨率（小于1μm），高对比度成像和简单的操作。在初始气压为300-600mTorr的条件下，以3.2mm直径，长达45cm长的填充有Ar的氧化铝毛细管产生由18-20kA，150-180ns长的电流脉冲以0.1 Hz的重复频率泵浦的激光器。 。在检查的毛细管长度下，激光器在饱和状态下工作，每脉冲输出能量约为300μJ，具有较高的相干度。

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