Dresden 2020 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 44: Quantum Chaos (joint session DY/TT)

TT 44.4: Vortrag

Mittwoch, 18. März 2020, 16:00–16:15, HÜL 186

Microstar cavities: An alternative concept for the confinement of light — •Julius Kullig¹, Xuefeng Jiang², Lan Yang², and Jan Wiersig¹ — ¹Institut für Physik, Otto-von-Guericke Universität Magdeburg, Magdeburg, Germany — ²Department of Electrical and Systems Engineering, Washington University in St. Louis, St. Louis, USA

We report on a novel concept to confine light in a microcavity. In contrast to traditional approaches we exploit neither total internal reflection nor a photonic band gap. Our approach is rather based on the perfect transmission of light at Brewster's angle. Thus, in a properly designed star-shaped cavity light rays can sequentially leave and reenter the cavity along a periodic orbit without loss of intensity. Accordingly, in the wave dynamics long-lived optical modes arise with fascinating and unique properties.