X-ray multilens interferometer based on Si refractive lenses

Abstract

To cite this version:A. Snigirev, I. Snigireva, M. Lyubomirskiy, V. Kohn, V. Yunkin, et al.. X-ray multilens interferometer based on Si refractive lenses. Optics Express, Optical Society of America, 2014, 22 (21) Abstract:We report a multilens X-ray interferometer consisting of six parallel arrays of planar compound refractive lenses, each of which creates a diffraction limited beam under coherent illumination. Overlapping such coherent beams produces an interference pattern demonstrating substantially strong longitudinal functional dependence. The interference fringe pattern produced by multilens interferometer was described by Talbot imaging formalism. Theoretical analysis of the interference pattern formation was carried out and corresponding computer simulations were performed. The proposed multilens interferometer was experimentally tested at ID06 ESRF beamline in the X-ray energy range from 10 to 30 keV. The experimentally recorded fractional Talbot images are in a good agreement with computer simulations. Moussaid, and I. Snigireva, "Microradian X-ray diffraction in colloidal photonic crystals," J. Appl. Cryst. 39(2), 137-144 (2006). 14. A. Bosak, I. Snigireva, K. S. Napolskii, and A. Snigirev, "High-resolution transmission X-ray microscopy: a new tool for mesoscopic materials," Adv. Mater. 22(30), 3256-3259 (2010). 15. P. Ershov, S. Kuznetsov, I. Snigireva, V. Yunkin, A. Goikhman, and A. Snigirev, "Fourier crystal diffractometry based on refractive optics," J.

Nanofocusing with aberration-corrected rotationally parabolic refractive X-ray lenses

“…While Be CRLs have been employed for full-field and scanning microscopy applications (Bosak et al, 2010;Schropp et al, 2013;Simons et al, 2015), the unavailabilty of lenses with radii of curvature R smaller than 50 mm is a barrier for the highest NAs. Consequently, alternative fabrication techniques like modern lithography and etching were explored to structure high-quality lenses into silicon wafers (Schroer et al, 2003;Alianelli et al, 2011;Snigirev et al, 2014;Patommel et al, 2017) and polymers Nazmov et al, 2004). Despite their high shape fidelity and material quality, strong absorption in silicon ISSN 1600-5775 and constraints to a one-dimensional lens shape with small apertures make them mostly applicable at current thirdgeneration synchrotron storage ring sources.…”

30-lens interferometer for high energy x-rays

“…1 (a). The interferometer proposed here is conceptually similar to the six-lens interferometer presented earlier 13 , except that it consists of the 30 compound refractive lenses across the beam. Each compound refractive lens focuses the beam at the distance z f = F/(1 F/z 0 ), where F = R/2N is the lens focal length and z 0 is the source-to-lens distance, R is the radius of curvature of one parabolic surface, N is the number of double concave elements in the CRL, is the decrement of complex refraction index n. Under coherent illumination each lens generates a coherent, diffraction limited focal spot of size w f = 0.44λz f /A eff , where λ is the wavelength and A eff = 0.66( λz f /β) is the absorption limited effective aperture of the lens 17 .…”

“…One of the latest directions in the development of refractive optics is in-line X-ray interferometry [12][13][14][15] . Recently proposed bilens interferometer allows generating the interference field with a variable period ranging from tens of nanometres to tens of micrometres 12 .…”

“…Recently proposed bilens interferometer allows generating the interference field with a variable period ranging from tens of nanometres to tens of micrometres 12 . As an evolution of inline bilens system, the six-lens interferometer, consisting of 6 parallel lens arrays, was introduced 13 . Six-lens interferometer gives rise to the increase of the contrast of the interference pattern, and furthermore it leads to a narrowing of the interference fringes.…”

X-ray Microscopy Opportunities at ID 15B Beamline at the ESRF.

“…In this regard, development of diamond refractive optics is crucial [5][6][7]. The implementation of the lens-based beam transport concept will significantly simplify the layout of majority of new beamlines [8][9], opening novel opportunities for the material science research under extreme conditions [10][11].The versatile beam conditioning properties of refractive optics enable to develop and implement new Xray coherence-related techniques including Fourier optics [12][13], coherent diffraction [14][15][16], phase contrast imaging [16][17][18][19], and interferometry [21][22][23][24]. Figure. 1.…”