Slot-waveguide cavities for optical quantum information applications

Hiscocks, Mark P.; Su, Chun‐Hsu; Gibson, Brant C.; Greentree, Andrew D.; Hollenberg, Lloyd C. L.; Ladouceur, François

doi:10.1364/oe.17.007295

Cited by 32 publications

(34 citation statements)

References 53 publications

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“…A number of architectures including pure diamond waveguides [11,12], or hybrid waveguide/fiber structures [13][14][15][16][17][18][19][20][21] have been explored. These hybrid approaches exploit the waveguide/fiber's evanescent field to couple the emitters to the optical mode.…”

Section: Introductionmentioning

confidence: 99%

Nanodiamond in tellurite glass Part I: origin of loss in nanodiamond-doped glass

Ebendorff-Heidepriem

Ruan

et al. 2014

Opt. Mater. Express

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Tellurite glass fibers with embedded nanodiamond are attractive materials for quantum photonic applications. Reducing the loss of these fibers in the 600-800 nm wavelength range of nanodiamond fluorescence is essential to exploit the unique properties of nanodiamond in the new hybrid material. In the first part of this study, we report the effect of interaction of the tellurite glass melt with the embedded nanodiamond on the loss of the glasses. The glass fabrication conditions such as melting temperature and concentration of NDs added to the melt were found to have critical influence on the interaction. Based on this understanding, we identified promising fabrication conditions for decreasing the loss to levels required for practical applications.

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Section: Introductionmentioning

confidence: 99%

Nanodiamond in tellurite glass Part I: origin of loss in nanodiamond-doped glass

Ebendorff-Heidepriem

Ruan

et al. 2014

Opt. Mater. Express

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“…Realizing a coupled NV-cavity system has also been achieved with Q > 25000 microdisk in GaP [46]. Finally, we note that novel slot-waveguide geometries, combined with mirrors, PBG or distributed Bragg reflectors in a Fabry-Pérot arrangement, are promising for achieving ultra-high optical confinement [47,48,49].…”

Section: Introductionmentioning

confidence: 93%

High-performance diamond-based single-photon sources for quantum communication

Greentree

Hollenberg

2009

Phys. Rev. A

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Quantum communication places stringent requirements on single-photon sources. Here we report a theoretical study of the cavity Purcell enhancement of two diamond point defects, the nickel-nitrogen (NE8) and silicon-vacancy (SiV) centers, for high-performance, near on-demand single-photon generation. By coupling the centers strongly to high-finesse optical photonic-bandgap cavities with modest quality factor Q = O(10 4 ) and small mode volume V = O(λ 3 ), these system can deliver picosecond single-photon pulses at their zero-phonon lines with probabilities of 0.954 (NE8) and 0.812 (SiV) under a realistic optical excitation scheme. The undesirable blinking effect due to transitions via metastable states can also be suppressed with O(10 −4 ) blinking probability. We analyze the application of these enhanced centers, including the previously-studied cavity-enhanced nitrogenvacancy (NV) center, to long-distance BB84 quantum key distribution (QKD) in fiber-based, openair terrestrial and satellite-ground setups. In this comparative study, we show that they can deliver performance comparable with decoy state implementation with weak coherent sources, and are most suitable for open-air communication.

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“…Slot-waveguide geometries [70,71], combined with mirrors, PBG or distributed Bragg (DBRs) reflectors in a Fabry-Perot arrangement [72], have also shown to be compatible with the NV and are promising for achieving ultra-small confinement [73]. A DBR-based waveguide cavity with Q = 27000 has been fabricated in silicon [74], and that using PBG structures reported Q = 58000 [75].…”

Section: Solid-state Implementationsmentioning

confidence: 99%

Pulse shaping by coupled cavities: Single photons and qudits

Greentree

Munro

et al. 2009

Phys. Rev. A

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Dynamic coupling of cavities to a quantum network is of major interest to distributed quantum information processing schemes based on cavity quantum electrodynamics. This can be achieved by actively tuning a mediating atom-cavity system. In particular, we consider the dynamic coupling between two coupled cavities, each interacting with a two-level atom, realized by tuning one of the atoms. One atom-field system can be controlled to become maximally and minimally coupled with its counterpart, allowing high fidelity excitation confinement, Q-switching and reversible state transport. As an application, we first show that simple tuning can lead to emission of near-Gaussian single-photon pulses that is significantly different from the usual exponential decay in a passive cavity-based system. The influences of cavity loss and atomic spontaneous emission are studied in detailed numerical simulations, showing the practicality of these schemes within the reach of current experimental solid-state technology. We then show that when the technique is employed to an extended coupled-cavity scheme involving a multi-level atom, arbitrary temporal superposition of single photons can be engineered in a deterministic way.

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Slot-waveguide cavities for optical quantum information applications

Cited by 32 publications

References 53 publications

Nanodiamond in tellurite glass Part I: origin of loss in nanodiamond-doped glass

Nanodiamond in tellurite glass Part I: origin of loss in nanodiamond-doped glass

High-performance diamond-based single-photon sources for quantum communication

Pulse shaping by coupled cavities: Single photons and qudits

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