Europhys. Lett.
Volume 73, Number 4, February 2006
Page(s) 526 - 532
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 18 January 2006
Europhys. Lett., 73 (4), pp. 526-532 (2006)
DOI: 10.1209/epl/i2005-10431-5

Nonspecular shifts of microwaves in partial reflection

D. Müller1, D. Tharanga2, A. A. Stahlhofen2 and G. Nimtz1, 2

1  Universität Köln, II. Physikalisches Institut Zülpicher Str. 77, D-50937 Köln, Germany
2  Universität Koblenz, Institut für Naturwissenschaften, Abteilung Physik Universitätsstr. 1, D-56070 Koblenz, Germany

received 29 November 2005; accepted 21 December 2005
published online 18 January 2006

An experimental study of beam shifts occurring in partial reflection from a planar dielectric interface is presented. A novel Goos-Hänchen-like shift in the regime below total reflection has been found depending on polarization, angle of incidence, and beam width. The shift is accompanied by an angular shift. The results match theoretical predictions based on the theory of moments of light beams.

42.25.Bs - Wave propagation, transmission and absorption.
42.25.Gy - Edge and boundary effects; reflection and refraction.

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