Hybrid metal-dielectric nanocavity for enhanced light-matter interactions

Despite tremendous advances in the fundamentals and applications of cavity quantum electrodynamics (CQED), investigations in this field have primarily been limited to optical cavities composed of purely dielectric materials. Here, we demonstrate a hybrid metal-dielectric nanocavity design and realiz...

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Published inarXiv.org
Main Authors Kelaita, Yousif A, Fischer, Kevin A, Babinec, Thomas M, Lagoudakis, Konstantinos G, Sarmiento, Tomas, Rundquist, Armand, Majumdar, Arka, Vuckovic, Jelena
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 13.01.2017
Subjects
Broadband
Dielectrics
Holes
Photonic crystals
Photons
Physics - Mesoscale and Nanoscale Physics
Physics - Optics
Physics - Quantum Physics
Quantum electrodynamics
Quantum theory
Spontaneous emission
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Summary:Despite tremendous advances in the fundamentals and applications of cavity quantum electrodynamics (CQED), investigations in this field have primarily been limited to optical cavities composed of purely dielectric materials. Here, we demonstrate a hybrid metal-dielectric nanocavity design and realize it in the InAs/GaAs quantum photonics platform utilizing angled rotational metal evaporation. Key features of our nanometallic light-matter interface include: (i) order of magnitude reduction in mode volume compared to that of leading photonic crystal CQED systems; (ii) surface-emitting nanoscale cylindrical geometry and therefore good collection efficiency; and finally (iii) strong and broadband spontaneous emission rate enhancement (Purcell factor ~ 8) of single photons. This light-matter interface may play an important role in quantum technologies.
ISSN:2331-8422
DOI:10.48550/arxiv.1406.7050