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Title: Multiple Reference Fourier Transform Holography With Soft X Rays

Abstract

No abstract prepared.

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
897460
Report Number(s):
SLAC-REPRINT-2006-170
TRN: US200705%%256
DOE Contract Number:
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Appl.Phys.Lett.89:163112,2006
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; HOLOGRAPHY; SOFT X RADIATION; FOURIER TRANSFORMATION; Other,OTHER

Citation Formats

A Schlotter, W.F., Rick, R., Chen, K., Scherz, A., Stohr, J., Luning, J., Eisebitt, S., Gunther, C., Eberhardt, W., Hellwig, O., McNulty, I., and /Stanford U., Appl. Phys. Dept. /SLAC, SSRL /BESSY, Berlin /Hitachi Global Stor. Tech., San Jose /Argonne. Multiple Reference Fourier Transform Holography With Soft X Rays. United States: N. p., 2007. Web.
A Schlotter, W.F., Rick, R., Chen, K., Scherz, A., Stohr, J., Luning, J., Eisebitt, S., Gunther, C., Eberhardt, W., Hellwig, O., McNulty, I., & /Stanford U., Appl. Phys. Dept. /SLAC, SSRL /BESSY, Berlin /Hitachi Global Stor. Tech., San Jose /Argonne. Multiple Reference Fourier Transform Holography With Soft X Rays. United States.
A Schlotter, W.F., Rick, R., Chen, K., Scherz, A., Stohr, J., Luning, J., Eisebitt, S., Gunther, C., Eberhardt, W., Hellwig, O., McNulty, I., and /Stanford U., Appl. Phys. Dept. /SLAC, SSRL /BESSY, Berlin /Hitachi Global Stor. Tech., San Jose /Argonne. Wed . "Multiple Reference Fourier Transform Holography With Soft X Rays". United States. doi:.
@article{osti_897460,
title = {Multiple Reference Fourier Transform Holography With Soft X Rays},
author = {A Schlotter, W.F. and Rick, R. and Chen, K. and Scherz, A. and Stohr, J. and Luning, J. and Eisebitt, S. and Gunther, C. and Eberhardt, W. and Hellwig, O. and McNulty, I. and /Stanford U., Appl. Phys. Dept. /SLAC, SSRL /BESSY, Berlin /Hitachi Global Stor. Tech., San Jose /Argonne},
abstractNote = {No abstract prepared.},
doi = {},
journal = {Appl.Phys.Lett.89:163112,2006},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 10 00:00:00 EST 2007},
month = {Wed Jan 10 00:00:00 EST 2007}
}
  • The authors demonstrate multiple reference source Fourier transform holography with soft x rays. This technique extends the detection limit of high resolution lensless imaging by introducing spatial multiplexing to coherent x-ray scattering. In this way, image quality is improved without increasing the radiation exposure to the sample. This technique is especially relevant for recording static images of radiation sensitive samples and for studying spatial dynamics with pulsed light sources. Applying their technique in the weak illumination limit they image a nanoscale test object by detecting {approx}2500 photons. The observed enhancement in the signal-to-noise ratio of the image follows the squaremore » root of the number of reference sources.« less
  • The use of one or more gold nanoballs as reference objects for Fourier transform holography (FTH) is analyzed using experimental soft x-ray diffraction from objects consisting of separated clusters of these balls. The holograms are deconvoluted against ball reference objects to invert to images, in combination with a Wiener filter to control noise. A resolution of {approx}30 nm, smaller than one ball, is obtained even if a large cluster of balls is used as the reference, giving the best resolution yet obtained by x-ray FTH. Methods of dealing with missing data due to a beamstop are discussed. Practical prepared objectsmore » which satisfy the FTH condition are suggested, and methods of forming them described.« less
  • We present a fabrication method for a reference source that is efficient when used for lensless Fourier transform holography. This method produces a reference source that yields high spatial resolution and enhanced signal-to-noise ratio in a Fourier-transformed real-space image, and is particularly useful for Fourier transform holography experiments in the hard x-ray region.
  • Panoramic full-field imaging is demonstrated by applying spatial multiplexing to Fourier transform holography. Multiple object and reference waves extend the effective field of view for lensless imaging without compromising the spatial resolution. In this way, local regions of interest distributed throughout a sample can be simultaneously imaged with high spatial resolution. A method is proposed for capturing multiple ultrafast images of a sample with a single x-ray pulse.