Microwave Guiding of Electrons on a Chip

作者:Hoffrogge J*; Froehlich R; Kasevich M A; Hommelhoff P
来源:Physical Review Letters, 2011, 106(19): 193001.
DOI:10.1103/PhysRevLett.106.193001

摘要

We demonstrate the transverse confinement and guiding of a low energy electron beam of several electron volts in a miniaturized linear quadrupole guide. The guiding potential is generated by applying a microwave voltage to electrodes fabricated on a planar substrate, which allows the potential landscape to be precisely shaped on a microscopic scale. We realize transverse trapping frequencies of 100 MHz and guide electrons along a circular section of 37 mm length. A detailed characterization of the guiding properties in terms of potential depth and dynamic stability is given. This new technique of electron guiding promises various applications in guided matter-wave experiments such as electron interferometry.

  • 出版日期2011-5-9