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Figure 3
The optimal incidence angle depends on the groove period and the wavelength. Solid lines are the calculated angles for the n = +1 Wood anomaly where the first outside order becomes evanescent. Markers represent optimal incidence angles for first inside order efficiency found using global optimization of the groove geometry and incidence to ±0.1°. Open markers: rectangular profile. Filled markers: blazed profile.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 20| Part 2| February 2013| Pages 272-285
doi:10.1107/S0909049512051266
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