J. Phys. I France
Volume 4, Numéro 10, October 1994
Page(s) 1379 - 1382
DOI: 10.1051/jp1:1994194
J. Phys. I France 4 (1994) 1379-1382

Tunneling with dissipation

G. Nimtz, H. Spieker and H.M. Brodowsky

II.Physikalisches Institut, Universität zu Köln, D-50937 Köln, Germany

(Received 30 June 1994, received in final form 2 July 1994, accepted 8 July 1994)

Dissipative tunneling was studied with electromagnetic waves. Experiments were carried out with undersized waveguides loaded with a lossy dielectric medium which corresponds to a complex potential barrier. With increasing dissipation the Hartman effect disappears, i.e., the traversal time becomes dependent on barrier length. The results are in agreement with a recent phase time approach on complex tunneling.

© Les Editions de Physique 1994

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