De Broglie wave-front curvature induced by electric-field gradients and its effect on precision measurements with an atom interferometer

Ivan Hromada, Raisa Trubko, William F. Holmgren, Maxwell D. Gregoire, Alexander D. Cronin

Research output: Contribution to journalArticle

3 Scopus citations


To improve precision measurements made with atom interferometers, the effect of de Broglie wave-front curvature induced by a lens inside an atom interferometer is experimentally demonstrated and theoretically analyzed. Electrostatic lenses shift, magnify, and distort atom interference fringes, which modifies the phase and the contrast of the interference signals. Informed by these observations, an improved method is presented for analyzing measurements of atomic beam velocity distributions using phase choppers [W. F. Holmgren, I. Hromada, C. E. Klauss, and A. D. Cronin, New J. Phys. 13, 115007 (2011)NJOPFM1367-263010.1088/1367-2630/13/11/115007].

Original languageEnglish (US)
Article number033612
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - Mar 10 2014


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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