H Christian Schewe et al 2009 New J. Phys. 11 113030 doi:10.1088/1367-2630/11/11/113030
H Christian Schewe, Bum Suk Zhao1, Gerard Meijer and Wieland Schöllkopf
Show affiliationsWe demonstrate one-dimensional (1D) focusing of a thermal helium atom beam by quantum reflection from a cylindrical concave quartz mirror at near-grazing incidence. The smallest width of the focus achieved is 1.8 μm, essentially limited by spherical aberration. The various effects that contribute to the finite focal width have been investigated. We propose to apply near-grazing reflection from two concave elliptical mirrors in a Kirkpatrick–Baez arrangement for two-dimensional (2D) focusing of a helium atom beam, paving the way for a helium atom microprobe.
Issue 11 (November 2009)
Received 23 July 2009
Published 17 November 2009
H Christian Schewe et al 2009 New J. Phys. 11 113030
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