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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F05%3A00014246%21RIV10-MSM-14310___
rdf:type
n16:Vysledek skos:Concept
dcterms:description
The diffractive-refractive optical device consisting of four crystals in (+,-,-,+) setting with longitudinal parabolic grooves has a geometrical aberration which influences the achievable focus size. This aberration is discussed analytically by using a new, more precise formula for the calculation of focusing distance, which respects the finite distance between optical elements. The calculation of the intensity distribution surrounding the focus is illustrated by a ray-tracing method based on the dynamical theory of diffraction. It demonstrates an achievable focus size. Finally we discuss that this aberration may be suppressed by the slight narrowing of the groove profile. In particular, the parameter a in the equation of parabola has to slightly grow with x. A practical application may require an ultra-precise fabrication of the grooves. The diffractive-refractive optical device consisting of four crystals in (+,-,-,+) setting with longitudinal parabolic grooves has a geometrical aberration which influences the achievable focus size. This aberration is discussed analytically by using a new, more precise formula for the calculation of focusing distance, which respects the finite distance between optical elements. The calculation of the intensity distribution surrounding the focus is illustrated by a ray-tracing method based on the dynamical theory of diffraction. It demonstrates an achievable focus size. Finally we discuss that this aberration may be suppressed by the slight narrowing of the groove profile. In particular, the parameter a in the equation of parabola has to slightly grow with x. A practical application may require an ultra-precise fabrication of the grooves.
dcterms:title
Aberrations of diffractive-refractive optics: Bragg-case sagittal focusing of multiple parabolic elements Aberrations of diffractive-refractive optics: Bragg-case sagittal focusing of multiple parabolic elements
skos:prefLabel
Aberrations of diffractive-refractive optics: Bragg-case sagittal focusing of multiple parabolic elements Aberrations of diffractive-refractive optics: Bragg-case sagittal focusing of multiple parabolic elements
skos:notation
RIV/00216224:14310/05:00014246!RIV10-MSM-14310___
n3:aktivita
n7:P n7:Z
n3:aktivity
P(1P04OCP07.004), Z(MSM0021622410)
n3:cisloPeriodika
24
n3:dodaniDat
n12:2010
n3:domaciTvurceVysledku
n9:5276179 n9:2966174
n3:druhVysledku
n8:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n5:predkladatel
n3:idSjednocenehoVysledku
511179
n3:idVysledku
RIV/00216224:14310/05:00014246
n3:jazykVysledku
n19:eng
n3:klicovaSlova
x-ray optics; x-ray diffraction; synchrotron radiation
n3:klicoveSlovo
n6:x-ray%20optics n6:synchrotron%20radiation n6:x-ray%20diffraction
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[F30F26ACC6DE]
n3:nazevZdroje
J. Phys. D: Appl. Phys.
n3:obor
n18:BM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n10:1P04OCP07.004
n3:rokUplatneniVysledku
n12:2005
n3:svazekPeriodika
38
n3:tvurceVysledku
Hrdý, J. Kuběna, Alan Mikulík, Petr
n3:zamer
n17:MSM0021622410
s:issn
0022-3727
s:numberOfPages
4
n14:organizacniJednotka
14310