Regensburg 2013 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 30: Quantum Chaos II
DY 30.4: Vortrag
Donnerstag, 14. März 2013, 15:45–16:00, H47
Are Fresnel filtering and the angular Goos-Hänchen shift the same? — •Jörg Götte1, Susumu Shinohara2, and Martina Hentschel3 — 1Max-Planck-Institute for the Physics of Complex Systems, Nöthnitzer Str. 38, D-01187 Dresden, Germany — 2NTT Communication Science Laboratories, NTT Corporation, 2-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237, Japan — 3Technische Universität Ilmenau, Institut für Physik, Weimarer Str. 25, D-98693 Ilmenau, Germany
In dielectric billiards ray dynamics have to be amended to account for wave effects, such as the spatial Goos-Hänchen shift. This shift is a small displacement upon transmission or reflection of a light beam of finite width. The idea is to change the reflection coefficients for rays to include wave phenomena in an effective way.
These wave phenomena not only alter the dynamics in the spatial domain, but also in the angular domain. Two effects are known in the literature, Fresnel filtering and the angular Goos-Hänchen shift, which both cause a deflection of the light beam with respect to Snell's law or the law of reflection.. This raises the question which of these two effects is more important for an improved ray-wave correspondence.
We approach this question by highlighting the similarities and differences between the two effects and study the dynamical currents of the optical field upon reflection and transmission.