Interference in edge-scattering from monocrystalline gold flakes [Invited]

Boroviks, Sergejs; Wolff, Christian; Linnet, Jes; Yang, Yuanqing; Todisco, Francesco; Roberts, Alexander Sylvester; Bozhevolnyi, Sergey I.; Hecht, Bert; Mortensen, N. Asger

doi:10.1364/ome.8.003688

Cited by 22 publications

(26 citation statements)

References 30 publications

(36 reference statements)

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“…The NPL is mostly emitted at the edges and apices of the quasi-2D structure [16]. Similar to the gold stripe, the origin of this strong response located at the boundaries is the combining results of the enhancement of the electromagnetic field at the dielectric discontinuity and the particularity of the electronic band structure around the specific atomic orientation of the edges and apices [38].…”

Section: Plasmonic Objectsmentioning

confidence: 97%

Photon bunching of the nonlinear photoluminescence emitted by plasmonics metals

Malchow

Bouhélier

2021

J. Opt. Soc. Am. B

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In this report, we investigate the statistical temporal distribution of nonlinear upconverted photoluminescence emitted by gold and silver nanostructures excited by focused near-infrared laser pulses. We systematically observe a clear signature of photon bunching regardless of the nano-object's geometry, material's crystalline arrangement, and electronic band structure. The similarity of the data obtained across very different plasmonic objects confirms that these types of nonlinear radiation share a common chaotic origin and result from a collection of emitters. The correlation of photons at a picosecond time scale released by nanoscale nonlinear sources of broadband radiation may be used in plasmonic devices to develop new data temporal and spatial processing functionalities.

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Section: Plasmonic Objectsmentioning

confidence: 97%

Photon bunching of the nonlinear photoluminescence emitted by plasmonics metals

Malchow

Bouhélier

2021

J. Opt. Soc. Am. B

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“…In the experiment, colloidal gold crystals were grown on a silicon substrate using a thermolysis synthesis technique 38 (see details in Supplementary, Section 2). Lithographic alignment markers were made on top of (and nearby) the gold crystals, and NDs were deposited on the substrate afterwards.…”

Section: Resultsmentioning

confidence: 99%

Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots

Siampour

Wang²,

Zenin

et al. 2020

Nanophotonics

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Striving for nanometer-sized solid-state single-photon sources, we investigate atomlike quantum emitters based on single germanium vacancy (GeV) centers isolated in crystalline nanodiamonds (NDs). Cryogenic characterization indicated symmetry-protected and bright (> 10 6 counts/s with off-resonance excitation) zero-phonon optical transitions with up to 6-fold enhancement in energy splitting of their ground states as compared to that found for GeV centers in bulk diamonds (i.e., up to 870 GHz in highly strained NDs vs 150 GHz in bulk). Utilizing lithographic alignment techniques, we demonstrate an integrated nanophotonic platform for deterministic interfacing plasmonic waveguides with isolated GeV centers in NDs that enables 10-fold enhancement of singlephoton decay rates along with the emission direction control by judiciously designing and positioning a Bragg reflector. This approach allows one to realize the unidirectional emission from single-photon dipolar sources introducing a novel method that is alternative to the propagation-direction-dependent techniques based on chiral interactions or topological protection. The developed plasmon-based nanophotonic platform opens thereby new perspectives for quantum nanophotonics in general and for realizing entanglement between single photons and spin qubits, in particular.

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“…Gold flakes were made following the recipe from ref. [78]. Alignment markers were made on the gold crystals, and subsequently NDs were deposited on the substrate following the process described in Section 3.2.…”

Section: Bragg Cavities and Mirrors For Efficient Channeling Of Emission Into Plasmonic Waveguidesmentioning

confidence: 99%

Single Photon Emitters Coupled to Plasmonic Waveguides: A Review

Kumar

Bozhevolnyi

2021

Adv Quantum Tech

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During the last two decades, many research groups have demonstrated coupling of single photon emitters to plasmonic waveguides, promising very high emission enhancements, for applications in quantum technologies. In this review, recent developments within this important research topic are discussed. Different plasmonic waveguide-quantum emitter configurations are compared from the application viewpoint by utilizing a figure-of-merit (FOM) reflecting the emission enhancement, coupling efficiency, and radiation loss. The experimental methods applied to obtain the coupled systems with high FOMs are described. Configurations that are exploited for reinforcing the coupling efficiency, i.e., the efficiency of funneling the emitted radiation into a plasmonic waveguide, are also considered as well as the scalability potential of various waveguide platforms. A recent experiment, in which enhanced light-matter interaction in a plasmonic waveguide is taken advantage of, resulting in the demonstration of non-linearity at the single emitter level, is discussed.

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Interference in edge-scattering from monocrystalline gold flakes [Invited]

Cited by 22 publications

References 30 publications

Photon bunching of the nonlinear photoluminescence emitted by plasmonics metals

Photon bunching of the nonlinear photoluminescence emitted by plasmonics metals

Ultrabright single-photon emission from germanium-vacancy zero-phonon lines: deterministic emitter-waveguide interfacing at plasmonic hot spots

Single Photon Emitters Coupled to Plasmonic Waveguides: A Review

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