TY - JOUR
T1 - An electron Talbot interferometer
AU - McMorran, Benjamin J.
AU - Cronin, Alexander D.
PY - 2009/3/17
Y1 - 2009/3/17
N2 - We report the first demonstration of a Talbot interferometer for electrons. The interferometer was used to image the Talbot carpet behind a nanofabricated material grating. The Talbot interferometer design uses two identical gratings, and is particularly sensitive to distortions of the incident wavefronts. To illustrate this we used our interferometer to measure the curvature of concave wavefronts in a weakly focused electron beam. We describe how this wavefront curvature demagnified the Talbot revivals, and we discuss further applications for electron Talbot interferometers.
AB - We report the first demonstration of a Talbot interferometer for electrons. The interferometer was used to image the Talbot carpet behind a nanofabricated material grating. The Talbot interferometer design uses two identical gratings, and is particularly sensitive to distortions of the incident wavefronts. To illustrate this we used our interferometer to measure the curvature of concave wavefronts in a weakly focused electron beam. We describe how this wavefront curvature demagnified the Talbot revivals, and we discuss further applications for electron Talbot interferometers.
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U2 - 10.1088/1367-2630/11/3/033021
DO - 10.1088/1367-2630/11/3/033021
M3 - Article
AN - SCOPUS:64549089686
VL - 11
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
M1 - 033021
ER -