Increasing the brightness of harmonic XUV radiation with spatially-tailored driver beams
Increasing the brightness of harmonic XUV radiation with spatially-tailored driver beams
复制标题
使用空间定制的驱动光束提高谐波 XUV 辐射的亮度
DOI:
10.1088/2040-8986/abcc56
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发表时间:
2020
影响因子:
2.1
通讯作者:
Treacher D
中科院分区:
文献类型:
--
作者:
Treacher D
Bright high harmonic sources can be produced by loosely focussing high peak power laser pulses to exploit the quadratic scaling of flux with driver spot size at the expense of a larger experimental footprint. Here, we present a method for increasing the brightness of a harmonic source (while maintaining a compact experimental geometry) by spatially shaping the transverse focal intensity distribution of a driving laser from a Gaussian to supergaussian. Using a phase-only spatial light modulator we increase the size and order of the supergaussian focal profiles, thereby increasing the number of harmonic emitters more efficiently than possible with Gaussian beams. This provides the benefits of a loose focussing geometry, yielding a five-fold increase in harmonic brightness, whilst maintaining a constant experimental footprint. This technique can readily be applied to existing high harmonic systems, opening new opportunities for applications requiring bright, compact sources of coherent short wavelength radiation.
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影响因子:
8.6
作者:
Ravasio, A.;Gauthier, D.;Merdji, H.
通讯作者:
Merdji, H.
影响因子:
3.8
作者:
D. Treacher;D. T. Lloyd;Florian Wiegandt;K. O’Keeffe;S. Hooker
通讯作者:
D. Treacher;D. T. Lloyd;Florian Wiegandt;K. O’Keeffe;S. Hooker
DOI:
--
发表时间:
2011
期刊:
LASE
影响因子:
--
作者:
Zuolan Wang;S. Drovs;Armin Segref;T. Koenning;R. Pandey
通讯作者:
R. Pandey
影响因子:
3.3
作者:
Chiang, Cheng-Tien;Huth, Michael;Widdra, Wolf
通讯作者:
Widdra, Wolf