Toward one nanometer X-ray focusing: a complex refractive lens design

Chen, Zhi; Xie, Honglan; Deng, Bangming; Du, Guohao; Jiang, Huaidong; Xiao, Tiqiao

doi:10.3788/col201412.123401

Cited by 9 publications

(2 citation statements)

References 30 publications

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“…With the ongoing and upcoming constructions of synchrotron and free electron laser facilities in China, scientists in China have made some progress on X-ray refractive lenses research [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Kinoform and saw-tooth X-ray refractive lenses development at SSRF

Liu

Huang

et al. 2018

J. Inst.

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Here we describe the effort made at Shanghai Synchrotron Radiation Facility (SSRF) to develop X-ray refractive lenses for real beamline applications. Fabrication process of silicon and germanium based kinoform lenses are optimized to increase the height-width aspect ratio and decrease the roughness. Saw-tooth lenses made with a new fabrication process based on dry etching are also described. Focusing effect for both kinoform and saw-tooth lenses are tested at Shanghai Synchrotron.

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Section: Introductionmentioning

confidence: 99%

Kinoform and saw-tooth X-ray refractive lenses development at SSRF

Liu

Huang

et al. 2018

J. Inst.

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“…Focusing of soft x-rays [1] and extreme ultraviolet (EUV) has many applications in the physical and life sciences. Unfortunately, a conventional refractive lens cannot focus soft x-rays and EUV as a consequence of the strong absorption of solid materials in the x-ray and EUV spectral regions.…”

mentioning

confidence: 99%

Focusing properties of a modified Fibonacci photon sieve

Zhang

Zhu

2015

中国光学快报

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We propose a type of diffractive optical element, a modified Fibonacci photon sieve (MFiPS), designed by using the Fibonacci sequence with two different initial seed elements. Focusing properties of MFiPS show that it not only has less secondary foci, but also presents two equal intensity foci by optimizing the diameters of pinholes of MFiPS whose ratio of the two focal distances approaches the golden mean. Higher transverse resolution on the two focal spots is improved by using a super-Gaussian amplitude modulation technology.

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Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses

Lin

et al. 2023

AIP Advances

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In our previous work, we proposed a new design method for an aberration-free x-ray refractive focusing lens based on an ideal Cartesian oval shape to solve the aberration problem in x-ray compound refractive focusing. In this paper, we propose an optimization method for this new lens. By reducing the aperture of each lens, we achieve the objective of increasing the effective aperture and improving the focusing performance of the lens. The simulation of the beam propagation method shows that the focusing performance of the optimized lenses is better in compound refractive lens shape but worse in the kinoform shape. This is different from the results obtained with the conventional kinoform lens. After further comparison, we found that this is because the step height of the kinoform lens is small when the lens aperture is very small, resulting in a strong diffraction effect that weakens the focusing performance of the lens. Further modifications to the structure of the kinoform lens are needed to improve this phenomenon.

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Toward one nanometer X-ray focusing: a complex refractive lens design

Cited by 9 publications

References 30 publications

Kinoform and saw-tooth X-ray refractive lenses development at SSRF

Kinoform and saw-tooth X-ray refractive lenses development at SSRF

Focusing properties of a modified Fibonacci photon sieve

Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses

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