Single-photon source engineering using a Modal Method

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Abstract

Solid-state sources of single indistinguishable photons are of great interest for quantum information applications. The semiconductor quantum dot embedded in a host material represents an attractive platform to realize such a single-photon source (SPS). A near-unity efficiency, defined as the number of detected photons by the collection optics per trigger, is desired, and to obtain this high efficiency the photonic environment must be engineered [1] such that all the emitted light couples to the collection optics. A recent design approach is based on a quantum dot placed inside a photonic nanowire (Fig. 1). This structure does not feature a cavity but instead relies on a geometrical screening effect to efficiently couple photons to the fundamental waveguide mode. Furthermore, the photonic nanowire SPS implements a bottom metal mirror and exploits tapering strategies based on conical tapers to ensure efficient in- and out-coupling. However, the performance of the photonic nanowire SPS depends critically on the geometrical parameters, and exact optical simulations of the scattering coefficients of the fundamental waveguide mode are required to obtain a detailed understanding of the various subcomponents. The natural choice of simulation method for the SPS design is thus a Modal Method, which allows for a determination of scattering coefficients in an elegant way. In this presentation, I will describe the Modal Method as well as its application to novel designs of highly efficient photonic nanowire SPSs
Original languageEnglish
Publication date2014
Publication statusPublished - 2014
EventPhotonics North 2014: International conference on application of photonic technology - Montreal, Canada
Duration: 28 May 201430 May 2014

Conference

ConferencePhotonics North 2014
CountryCanada
CityMontreal
Period28/05/201430/05/2014

Cite this

Gregersen, N. (2014). Single-photon source engineering using a Modal Method. Abstract from Photonics North 2014, Montreal, Canada.
Gregersen, Niels. / Single-photon source engineering using a Modal Method. Abstract from Photonics North 2014, Montreal, Canada.
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title = "Single-photon source engineering using a Modal Method",
abstract = "Solid-state sources of single indistinguishable photons are of great interest for quantum information applications. The semiconductor quantum dot embedded in a host material represents an attractive platform to realize such a single-photon source (SPS). A near-unity efficiency, defined as the number of detected photons by the collection optics per trigger, is desired, and to obtain this high efficiency the photonic environment must be engineered [1] such that all the emitted light couples to the collection optics. A recent design approach is based on a quantum dot placed inside a photonic nanowire (Fig. 1). This structure does not feature a cavity but instead relies on a geometrical screening effect to efficiently couple photons to the fundamental waveguide mode. Furthermore, the photonic nanowire SPS implements a bottom metal mirror and exploits tapering strategies based on conical tapers to ensure efficient in- and out-coupling. However, the performance of the photonic nanowire SPS depends critically on the geometrical parameters, and exact optical simulations of the scattering coefficients of the fundamental waveguide mode are required to obtain a detailed understanding of the various subcomponents. The natural choice of simulation method for the SPS design is thus a Modal Method, which allows for a determination of scattering coefficients in an elegant way. In this presentation, I will describe the Modal Method as well as its application to novel designs of highly efficient photonic nanowire SPSs",
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year = "2014",
language = "English",
note = "Photonics North 2014 : International conference on application of photonic technology ; Conference date: 28-05-2014 Through 30-05-2014",

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Gregersen, N 2014, 'Single-photon source engineering using a Modal Method' Photonics North 2014, Montreal, Canada, 28/05/2014 - 30/05/2014, .

Single-photon source engineering using a Modal Method. / Gregersen, Niels.

2014. Abstract from Photonics North 2014, Montreal, Canada.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

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T1 - Single-photon source engineering using a Modal Method

AU - Gregersen, Niels

PY - 2014

Y1 - 2014

N2 - Solid-state sources of single indistinguishable photons are of great interest for quantum information applications. The semiconductor quantum dot embedded in a host material represents an attractive platform to realize such a single-photon source (SPS). A near-unity efficiency, defined as the number of detected photons by the collection optics per trigger, is desired, and to obtain this high efficiency the photonic environment must be engineered [1] such that all the emitted light couples to the collection optics. A recent design approach is based on a quantum dot placed inside a photonic nanowire (Fig. 1). This structure does not feature a cavity but instead relies on a geometrical screening effect to efficiently couple photons to the fundamental waveguide mode. Furthermore, the photonic nanowire SPS implements a bottom metal mirror and exploits tapering strategies based on conical tapers to ensure efficient in- and out-coupling. However, the performance of the photonic nanowire SPS depends critically on the geometrical parameters, and exact optical simulations of the scattering coefficients of the fundamental waveguide mode are required to obtain a detailed understanding of the various subcomponents. The natural choice of simulation method for the SPS design is thus a Modal Method, which allows for a determination of scattering coefficients in an elegant way. In this presentation, I will describe the Modal Method as well as its application to novel designs of highly efficient photonic nanowire SPSs

AB - Solid-state sources of single indistinguishable photons are of great interest for quantum information applications. The semiconductor quantum dot embedded in a host material represents an attractive platform to realize such a single-photon source (SPS). A near-unity efficiency, defined as the number of detected photons by the collection optics per trigger, is desired, and to obtain this high efficiency the photonic environment must be engineered [1] such that all the emitted light couples to the collection optics. A recent design approach is based on a quantum dot placed inside a photonic nanowire (Fig. 1). This structure does not feature a cavity but instead relies on a geometrical screening effect to efficiently couple photons to the fundamental waveguide mode. Furthermore, the photonic nanowire SPS implements a bottom metal mirror and exploits tapering strategies based on conical tapers to ensure efficient in- and out-coupling. However, the performance of the photonic nanowire SPS depends critically on the geometrical parameters, and exact optical simulations of the scattering coefficients of the fundamental waveguide mode are required to obtain a detailed understanding of the various subcomponents. The natural choice of simulation method for the SPS design is thus a Modal Method, which allows for a determination of scattering coefficients in an elegant way. In this presentation, I will describe the Modal Method as well as its application to novel designs of highly efficient photonic nanowire SPSs

M3 - Conference abstract for conference

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Gregersen N. Single-photon source engineering using a Modal Method. 2014. Abstract from Photonics North 2014, Montreal, Canada.