Regensburg 2019 – wissenschaftliches Programm
DY 37.5: Vortrag
Mittwoch, 3. April 2019, 16:30–16:45, H6
Resonance--Assisted Tunneling in Deformed Optical Microdisks with a Mixed Phase Space — •Felix Fritzsch1, Roland Ketzmerick1,2, and Arnd Bäcker1,2 — 1TU Dresden, Institut für Theoretische Physik, Dresden — 2MPI für Physik komplexer Systeme, Dresden
In optical microcavities dynamical tunneling leads to finite lifetimes of whispering gallery modes, which are classically confined by total internal reflection. The lifetimes of such modes may drastically decrease by resonance--assisted tunneling due to the presence of classical nonlinear resonances in the ray dynamics. We extend the description of resonance--assisted tunneling from near integrable systems to systems with a mixed phase space showing regular as well as chaotic dynamics. In particular, we present a qualitative semiclassical description based on ray dynamics. This provides an intuitive picture depending only on classical properties. For the case of a quadrupol cavity we combine these methods with a perturbative approach resulting in an accurate quantitative prediction of lifetimes and quality factors.