Chiral topological photonics with an embedded quantum emitter

Autor:	Mehrabad, Mahmoud Jalali, Foster, Andrew P., Dost, René, Fox, A. Mark, Skolnick, Maurice S., Wilson, Luke R.
Rok vydání:	2019
Předmět:	Physics - Optics Physics - Applied Physics Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1364/OPTICA.393035
Popis:	Topological photonic interfaces support topologically non-trivial optical modes with helical character. When combined with an embedded quantum emitter that has a circularly polarised transition dipole moment, a chiral quantum optical interface is formed due to spin-momentum locking. Here, we experimentally realise such an interface by integrating semiconductor quantum dots into a valley-Hall topological photonic crystal waveguide. We harness the robust waveguide transport to create a ring resonator which supports helical modes. Chiral coupling of quantum dot transitions, with directional contrast as high as $75\%$, is demonstrated. The interface also supports a topologically trivial mode, comparison with which allows us to clearly demonstrate the protection afforded by topology to the non-trivial mode. Comment: 8 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1912.09943 Zobrazit plný text záznamu View this record from Arxiv