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DY: Fachverband Dynamik und Statistische Physik

DY 53: Poster: Quantum Dynamics, Chaos and Information; Many Body Systems

DY 53.16: Poster

Donnerstag, 19. März 2020, 15:00–18:00, P1A

Resonance–Assisted Tunneling in Deformed Optical Microdisks with a Mixed Phase Space — •Felix Fritzsch¹, Roland Ketzmerick^{1, 2}, and Arnd Bäcker^{1, 2} — ¹TU Dresden, Institut für Theoretische Physik — ²MPI für Physik komplexer Systeme, Dresden

In optical microcavities dynamical tunneling allows for 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 present an intuitive semiclassical description which is based on classical properties and gives good agreement with numerically obtained lifetimes [1]. Moreover, we employ a perturbative description of resonance–assisted tunneling in order to predict complex wave numbers and to reconstruct both the intensity distribution of the nearfield as well as the phase-space distribution of whispering gallery modes.

[1] Fritzsch, Ketzmerick, Bäcker, Phys. Rev. E 100, 042219 (2019)