scholarly journals Fabrication of Fresnel zone plates by holography in the extreme ultraviolet region

2008 ◽  
Vol 26 (6) ◽  
pp. 2160-2163 ◽  
Author(s):  
Sankha S. Sarkar ◽  
Pratap K. Sahoo ◽  
Harun H. Solak ◽  
Christian David ◽  
J. Friso Van der Veen
Keyword(s):  
Extreme Ultraviolet ◽  
Fresnel Zone ◽  
Ultraviolet Region ◽  
Fresnel Zone Plates ◽  
Zone Plates

scholarly journals Fresnel zone plates made by holography in the extreme ultraviolet region

2009 ◽  
Vol 186 ◽  
pp. 012071 ◽  
Author(s):  
Sankha S Sarkar ◽  
Pratap K Sahoo ◽  
Harun H Solak ◽  
Christian David ◽  
J Friso van der Veen
Keyword(s):  
Extreme Ultraviolet ◽  
Fresnel Zone ◽  
Ultraviolet Region ◽  
Fresnel Zone Plates ◽  
Zone Plates

Fabrication of Fresnel zone plates with 25nm zone width using extreme ultraviolet holography

2010 ◽  
Vol 87 (5-8) ◽  
pp. 854-858 ◽  
Author(s):  
Sankha S. Sarkar ◽  
Harun H. Solak ◽  
Jörg Raabe ◽  
Christian David ◽  
J. Friso van der Veen
Keyword(s):  
Extreme Ultraviolet ◽  
Fresnel Zone ◽  
Fresnel Zone Plates ◽  
Zone Width ◽  
Zone Plates

Fast and easy fabrication methodology of Fresnel zone plates for the extreme ultraviolet and soft x-ray regions

2019 ◽  
Vol 58 (4) ◽  
pp. 1057 ◽  
Author(s):  
A. Schümmer ◽  
H.-Ch. Mertins ◽  
Claus Michael Schneider ◽  
Roman Adam ◽  
Stefan Trellenkamp ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Fresnel Zone ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
Zone Plates

scholarly journals Zone plates for angle-resolved photoelectron spectroscopy providing sub-micrometre resolution in the extreme ultraviolet regime

2019 ◽  
Vol 26 (2) ◽  
pp. 467-472 ◽  
Author(s):  
Benedikt Rösner ◽  
Pavel Dudin ◽  
Jeroen Bosgra ◽  
Moritz Hoesch ◽  
Christian David
Keyword(s):  
Photoelectron Spectroscopy ◽  
Extreme Ultraviolet ◽  
Fresnel Zone ◽  
Real Space ◽  
Photon Flux ◽  
Two Dimensional ◽  
Fresnel Zone Plates ◽  
Space Resolution ◽  
Zone Plates ◽  
Local Electronic Structure

This article reports on the fabrication and testing of dedicated Fresnel zone plates for use at the nano-ARPES branch of the I05-ARPES beamline of Diamond Light Source to perform angle-resolved photoelectron spectroscopy with sub-micrometre resolution in real space. The aim of the design was to provide high photon flux combined with sub-micrometre spot sizes. The focusing lenses were tested with respect to efficiency and spatial resolution in the extreme ultraviolet between 50 eV and 90 eV. The experimentally determined diffraction efficiencies of the zone plates are as high as 8.6% at 80 eV, and a real-space resolution of 0.4 µm was demonstrated. Using the zone-plate-based setup, monolayer flakes of the two-dimensional semiconductor WS2 were investigated. This work demonstrates that the local electronic structure can be obtained from an area of a few micrometres across a two-dimensional heterostructure.

scholarly journals Analysis of Predistortion Techniques on Fresnel Zone Plates in Ultrasound Applications

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5066
Author(s):  
José Miguel Fuster ◽  
Sergio Pérez-López ◽  
Francisco Belmar ◽  
Pilar Candelas
Keyword(s):  
Intensity Distribution ◽  
Fresnel Zone ◽  
Focal Depth ◽  
Acoustic Intensity ◽  
Fresnel Zone Plates ◽  
Therapeutic Applications ◽  
Zone Plates ◽  
Ultrasound Applications

In this work, we analyze the effect of predistortion techniques on the focusing profile of Fresnel Zone Plates (FZPs) in ultrasound applications. This novel predistortion method is based on either increasing or decreasing the width of some of the FZP Fresnel rings by a certain amount. We investigate how the magnitude of the predistortion, as well as the number and location of the predistorted rings, influences the lens focusing profile. This focusing profile can be affected in different ways depending on the area of the lens where the predistortion is applied. It is shown that when the inner area of the lens, closer to its center, is predistorted, this technique allows the control of the focal depth at the main focus. However, when the predistortion is applied to an area farther from the center of the lens, the acoustic intensity distribution among the main focus and the closest adjacent secondary foci can be tailored at a certain degree. This predistortion technique shows great potential and can be used to control, modify and shape the FZP focusing profile in both industrial and therapeutic applications.

APD-based x-ray imaging telescope using Fresnel zone plates for extremely high spatial resolution

2005 ◽  
Author(s):  
Michael R. Squillante ◽  
Richard A. Myers ◽  
Mitchell Woodring ◽  
James F. Christian ◽  
Frank Robertson ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Fresnel Zone ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
Zone Plates ◽  
X Ray Imaging ◽  
Imaging Telescope

Fresnel zone plates for two wavelengths

1995 ◽  
Author(s):  
Eugene O. Curatu ◽  
Roxana N. Radvan ◽  
Roxana Savastru
Keyword(s):  
Fresnel Zone ◽  
Fresnel Zone Plates ◽  
Zone Plates
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