Fresnel filtering of Gaussian beams in microcavities

Abstract

We study the output from the modes described by the superposition of Gaussian beams confined in the quasi-stadium microcavities. We experimentally observe the deviation from Snell's law in the output when the incident angle of the Gaussian beam at the cavity interface is near the critical angle for total internal reflection, providing direct experimental evidence on the Fresnel filtering. The theory of the Fresnel filtering for a planar interface qualitatively reproduces experimental data, and a discussion is given on small deviation between the measured data and the theory.

arXiv comment3 pages, 2 figures

References in corpus (6)

• Quasi-Scarred Resonances in a Spiral-Shaped Microcavity
• Fresnel filtering in lasing emission from scarred modes of wave-chaotic optical resonators
• Correcting ray optics at curved dielectric microresonator interfaces: Phase-space unification of Fresnel filtering and the Goos-Haenchen shift
• A Gaussian-optical Approach to Stable Periodic Orbit Resonances of Partially Chaotic Dielectric Micro-cavities
• Deviation from Snell's Law for Beams Transmitted Near the Critical Angle: Application to Microcavity Lasers
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• Ray picture and ray-wave correspondence in triangular microlasers