Europhys. Lett.
Volume 69, Number 1, January 2005
Page(s) 48 - 54
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 08 December 2004
Europhys. Lett., 69 (1), pp. 48-54 (2005)
DOI: 10.1209/epl/i2004-10299-9

Induced optical tunneling

Ch. Hirlimann1, B. Thomas1 and D. Boosé2

1  Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP 23 rue du Loess, F-67037 Strasbourg Cedex, France
2  Laboratoire de Physique Théorique, Université Louis Pasteur, UMR 7085 CNRS-ULP 3 rue de l'Université, F-67084 Strasbourg Cedex, France

received 7 April 2004; accepted in final form 25 October 2004
published online 8 December 2004

It is shown that the transmission of light through an optical barrier can be increased by varying momentarily the refractive index in the front prism with the help of light pulses of short duration and weak intensity. The observed phenomenon provides the first experimental evidence of the existence of a tunnel effect induced by the small motions of a potential barrier.

42.50.-p - Quantum optics.
78.47.+p - Time-resolved optical spectroscopies and other ultrafast optical measurements in condensed matter.
03.65.Xp - Tunneling, traversal time, quantum Zeno dynamics.

© EDP Sciences 2005