Mainz 2017 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 27: Nano-Optics III

Q 27.6: Vortrag

Dienstag, 7. März 2017, 15:45–16:00, P 11

Extreme single-emitter interaction with two-coupled bad resonators — •Burak Gurlek, Vahid Sandoghdar, and Diego Martin-Cano — Nano-Optics Division, Max Planck Institute for the Science of Light, Erlangen, Germany.

Nonlinear photon generations require strong interactions between light and matter. Nanoantennas and optical cavities are two complimentary and common approaches for enhancing these interactions at extreme levels, the first relying on extremely small volumes whereas the second on small bandwidths (high Q-factors). Recently, it has been proposed that hybrid combinations between nanoantenna and a high Q cavity can further enhance the spontaneous emission of a single quantum emitter [1, 2]. Here, we explore a hybrid system based on a low-Q cavity and a nanoantenna, leading to non-intuitive additional enhancements and quenching behavior. Taking a confocal cavity and a nanocone as an example, we make use of the Quasi Normal Mode (QNM) approach [3] to study the interference mechanism that creates these interesting properties. Our results provide new possibilities for improving the efficiency of single emitters and entering extreme regimes of photophysics. References: [1] Y. Xiao et al., Phys. Rev. A 85, 031805(R) (2012). [2] H. M. Doeleman et al., ACS Photonics 3 (10), 1943-1951 (2016). [3] C. Sauvan et al., PRL 110, 237401 (2013).