Fundamental cavity-waveguide interplay in cavity QED

Research output: Research - peer-reviewPaper – Annual report year: 2018

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Interfacing solid-state emitters with photonic structures is a key strategy for developing highly efficient photonic quantum technologies [1]. Such structures are often organised into two distinct categories: nanocavities and waveguides. However, any realistic nanocavity structure simultaneously has characteristics of both a cavity and waveguide, which is particularly pronounced when the cavity is constructed using low-reflectivity mirrors in a waveguide structure with good transverse light confinement. In this regime, standard cavity quantum optics theory breaks down, as the waveguide character of the underlying dielectric is only weakly suppressed by the cavity mirrors. In this work [2], we present a quantum optical model that captures the transition between a high-Q cavity and a waveguide, allowing consistent treatment of waveguides, lossy resonators, and high quality cavities. Our model constitutes a bridge between highly accurate optical simulations of nanostructures [3] and microscopic quantum dynamical calculations. This way, the quantum properties of generated light can be calculated, while fully accounting for the electromagnetic properties of the nanostructure. The generality of this theory enables us to identify an optimal regime of operation for quantum dot single-photon sources, which simultaneously harnesses the high efficiency of a waveguide and the phonon- suppressing spectral structure of a cavity [4,5].
Original languageEnglish
Publication date2018
Number of pages1
StatePublished - 2018
EventInternational Conference on Integrated Quantum Photonics - Université Paris Diderot - Paris 7, Paris, France
Duration: 15 Oct 201817 Oct 2018
http://iciqp2018.lip6.fr/index.html

Conference

ConferenceInternational Conference on Integrated Quantum Photonics
LocationUniversité Paris Diderot - Paris 7
CountryFrance
CityParis
Period15/10/201817/10/2018
Internet address
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