Focusing XFEL SASE pulses by rotationally parabolic refractive x-ray lenses
Focusing XFEL SASE pulses by rotationally parabolic refractive x-ray lenses
复制标题
通过旋转抛物面折射 X 射线透镜聚焦 XFEL SASE 脉冲
DOI:
10.1088/1742-6596/499/1/012004
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
C. G. Schroer
中科院分区:
文献类型:
--
作者:
F. Seiboth;A. Schropp;R. Hoppe;V. Meier;J. Patommel;H. J. Lee;B. Nagler;E. C. Galtier;B. Arnold;U. Zastrau;J. B. Hastings;D. Nilsson;F. Uhlén;U. Vogt;H. M. Hertz;C. G. Schroer
Using rotationally parabolic refractive x-ray lenses made of beryllium, we focus hard x-ray free-electron laser pulses of the Linac Coherent Light Source (LCLS) down to a spot size in the 100 nm range. We demonstrated efficient nanofocusing and characterized the nanofocused wave field by ptychographic imaging [A. Schropp, et al., Sci. Rep. 3, 1633 (2013)] in the case of monochromatic LCLS pulses produced by a crystal monochromator that decreases the LCLS bandwidth down to ΔE/E= 1.4· 10− 4. The full spectrum of LCLS pulses generated by self-amplified spontaneous emission (SASE), however, fluctuates and has a typical bandwidth of a few per mille (ΔE/E≈ 2· 10− 3). Due to the dispersion in the lens material, a polychromatic nanobeam generated by refractive x-ray lenses is affected by chromatic aberration. After reviewing the chromaticity of refractive x-ray lenses, we discuss the influence of increased bandwidth on the quality of a nanofocused SASE pulse.
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影响因子:
4
作者:
Schropp, A.;Hoppe, R.;Schroer, C. G.
通讯作者:
Schroer, C. G.
影响因子:
3.6
作者:
Nilsson, Daniel;Uhlen, Fredrik;Vogt, Ulrich
通讯作者:
Vogt, Ulrich
DOI:
10.1117/12.2024784
发表时间:
2013
期刊:
--
影响因子:
--
作者:
A. Schropp;R. Hoppe;J. Patommel;F. Seiboth;F. Uhlén;U. Vogt;H. Lee;B. Nagler;E. Galtier;U. Zastrau;B. Arnold;P. Heimann;J. Hastings;C. Schroer
通讯作者:
C. Schroer
影响因子:
2.2
作者:
A. Schropp;J. Patommel;F. Seiboth;B. Arnold;E. Galtier;H. Lee;B. Nagler;J. Hastings;C. Schroer
通讯作者:
C. Schroer
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
S.;Matsuyama
通讯作者:
Matsuyama