Table of Contents
ISRN Spectroscopy
Volume 2012 (2012), Article ID 174952, 4 pages
Research Article

Periodic Variations in the Wavelength Distributions following Photon Interferences: Analogy with Electron Interferences

1Centre de Recherche sur les Ions, les Matériaux et la Photonique, Unité Mixte Université de Caen-CEA-CNRS-EnsiCaen, 6 Boulevard Maréchal Juin, 14050 Caen Cedex 4, France
2Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica and Universidad Nacional de Cuyo, 8400 San Carlos de Bariloche, Río Negro, Argentina

Received 5 January 2012; Accepted 30 January 2012

Academic Editors: C. Kosmidis and E. Weigold

Copyright © 2012 Maxime Vabre et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A new interference phenomenon is reported, which has so far not been observed with either matter or light. In a nanometer-sized version of Feynman's famous two-slit “thought” experiment with single electrons, the width of a quasi-monochromatic line has been found to oscillate with the detection angle. Since this experiment resembles the original double-slit experiment by Young with light (1807), photon interferences were investigated in order to determine the wavelength distribution as a function of the position in the interference field. In addition to the well-known oscillating dependence of the intensity with a succession of dark and bright fringes, a periodic dependence with respect to the detection position has also been observed for the width of the wavelength distribution, revealing a larger analogy between electron and photon interferences.