Abstract
We demonstrate that a slot waveguide provides a broadband loss-free platform suitable for applications in quantum optics. We find that strong coupling between light quanta and a single quantum emitter placed in the waveguide slot can be achieved with efficiency higher than 96% and Purcell factor (spontaneous emission factor) larger than 200. The proposed system is a promising platform for quantum information processing and can be used to realize an efficient single photon source and optically addressable photon register.
Highlights
We find that strong coupling between light quanta and a single quantum emitter placed in the waveguide slot can be achieved with efficiency higher than 96% and Purcell factorspontaneous emission factorlarger than 200
The proposed system is a promising platform for quantum information processing and can be used to realize an efficient single photon source and optically addressable photon register
We propose a cavity-free, loss-free, and broadband slot waveguide-based QEDwQEDsystem on chipFig. 1͒, in which the single emitter is strongly coupled to the waveguide mode
Summary
We demonstrate that a slot waveguide provides a broadband loss-free platform suitable for applications in quantum optics. We find that strong coupling between light quanta and a single quantum emitter placed in the waveguide slot can be achieved with efficiency higher than 96% and Purcell factorspontaneous emission factorlarger than 200.
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