Time-preserving grating monochromators for ultrafast extreme-ultraviolet pulses

被引:52
|
作者
Poletto, Luca [1 ]
Frassetto, Fabio [1 ]
机构
[1] Inst Photon & Nanotechnol, Natl Res Council, Lab UV & Xray Opt Res, Padua, Italy
关键词
HIGH-ORDER HARMONICS; DELAY-COMPENSATED MONOCHROMATOR; FREE-ELECTRON LASER; X-RAY-EMISSION; GRAZING-INCIDENCE; ULTRASHORT PULSES; DESIGN; SPECTROMETER; EFFICIENCY; RADIATION;
D O I
10.1364/AO.49.005465
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We analyze the time response of single-grating monochromators for application to extreme-ultraviolet ultrashort pulses. It is shown that time-preserving monochromators can be realized in a single-grating configuration if the number of illuminated grooves is the minimum for a given resolution and the grating time response is close to the Fourier limit for such a resolution. Two different grating configurations are compared: the classical diffraction mount (CDM) and the off-plane mount (OPM). We shown that the CDM is preferred for single-grating monochromators with relatively long time responses, i.e., 100-200 fs, while the OPM is suitable for ultrashort time responses in the 10-50 fs range to realize femtosecond time-preserving monochromators. (C) 2010 Optical Society of America
引用
收藏
页码:5465 / 5473
页数:9
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