Lithium fluoride detectors for high spatial resolution imaging of tabletop XUV from high harmonic generation in gases

被引：4
|
作者：
Estrela, Patricia [1 ]
Macoas, Ermelinda [2 ,3 ]
Williams, Gareth [1 ]
Hussain, Mukhtar [1 ]
Fajardo, Marta [1 ]
机构：
[1] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, Av Rovisco Pais 1, P-1049001 Lisbon, Portugal
[2] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural CQE, P-1049001 Lisbon, Portugal
[3] Univ Lisbon, Inst Super Tecn, Inst Mol Sci IMS, P-1049001 Lisbon, Portugal
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2021年 / 38卷 / 07期
基金：
欧盟地平线“2020”;
关键词：
X-RAY LASER; LIF CRYSTAL;
D O I：
10.1364/JOSAB.422767
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
As high harmonic generation (HHG) sources have proliferated, the need for high resolution, affordable extreme ultraviolet (XUV) detectors has become ubiquitous. We studied lithium fluoride (LiF) crystals, traditionally used for x rays, as a detector for a tabletop XUV source from high harmonic generation in gases. The LiF response curve showed a dynamic range of 10(3) (not saturated), with a minimum threshold fluence of 66 mu J/cm(2). Imaging tests were performed revealing sub-micrometer spatial resolution. We successfully recorded a scan of the focal plane of a Fresnel zone plate with high dynamic range. With this study, we showed that LiF can be used as a detector for HHG XUV, with a high potential to do near field imaging of complex objects such as the focus of structured light. (C) 2021 Optical Society of America
引用
收藏
页码：2234 / 2238
页数：5
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