Research Papers in Physics and Astronomy
Title
A wide-angle electron grating bi-prism beam splitter
Date of this Version
2009
Abstract
We demonstrate a wide-angle electron beam splitter capable of producing 1 cm beam separation at the detection plane. The beam splitter utilizes a nanofabricated periodic grating in combination with a bi-prism element. In contrast to devices utilizing only bi-prism elements, the use of the periodic grating causes amplitude, and not wavefront, splitting. Even at maximum separation, beam profiles remain undistorted, providing evidence that coherence is intact. This is a step towards the realization of a large area electron interferometer using such a grating bi-prism combination.
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Comments
Published in JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS 42 (2009) 165503 (6pp) doi:10.1088/0953-4075/42/16/165503 Copyright 2009 IOP Publishing Ltd. Used by permission.