Regensburg 2016 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 41: Quantum Chaos

DY 41.6: Vortrag

Mittwoch, 9. März 2016, 16:45–17:00, H48

Triangular microlasers in the ray picture — •Pia Stockschläder, Jakob Kreismann, and Martina Hentschel — Technische Universität Ilmenau, Institut für Physik, Ilmenau, Germany

We apply ray-optical methods to dielectric optical microcavities in the shape of triangles made of low refractive index material. Geometrical optics is extended by the inclusion of intensity amplification along the optical path to achieve a better description of active, lasing cavities. Far-field emission patterns of triangular cavities obtained in this way agree well with experimental results. We find ray trajectories that maximize the intensity inside the cavity to determine the far-field emission characteristics. As these maximum intensity orbits need not to be periodic we suggest that they provide a more general explanation for emission patterns of microlasers than single periodic orbits. We present results for triangles of different symmetry classes.