Quantum Plasmonics with Quantum Dot-Metal Nanoparticle Molecules: Influence of the Fano Effect on Photon Statistics

Ridolfo, A.; Stefano, Omar Di; Fina, N.; Saija, Rosalba; Savasta, Salvatore

doi:10.1103/physrevlett.105.263601

Cited by 312 publications

(303 citation statements)

References 29 publications

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“…In comparison with resonant optical antennas, whereby coherent coupling has been studied from a quantum-optical perspective [61], our scheme does not suffer from resonance shifts that occur when a nano-emitter approaches the antenna [62]. We remark that these may completely detuned the antenna and compromise the enhancements.…”

Section: Discussionmentioning

confidence: 99%

Light scattering under nanofocusing: Towards coherent nanoscopies

Mohammadi

Agio

2012

Optics Communications

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We investigate light scattering under nanofocusing in the context of coherent spectroscopy. We discuss the different mechanisms that may enhance the signal in extinction and how these depend on nanofocusing as well as on the probed system. We find that nanofocusing may improve the detection sensitivity by orders of magnitude under realistic conditions, enabling scanning implementations of coherent spectroscopy at the nanoscale.

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Section: Discussionmentioning

confidence: 99%

Light scattering under nanofocusing: Towards coherent nanoscopies

Mohammadi

Agio

2012

Optics Communications

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“…The realms of quantum information science and plasmonics have also been bridged by demonstrating that photon emission statistics, such as antibunching behavior in the second-order correlation function for single photon sources, remain intact following the photon-plasmonphoton conversion process (16)(17)(18)(19). The possibility of controlling the scattering of a plasmonic nanocavity by a single (and inherently quantum and nonlinear) two-level system has also been proposed (12,(20)(21)(22) but never experimentally observed.In this article we provide, to our knowledge, the first experimental demonstration that a single quantum dot (QD) dramatically modifies the scattering spectrum of a simple plasmonic cavity comprising a single metallic nanoparticle (MNP). The MNP-QD hybrid structure is assembled into a well-controlled geometry using the technique of atomic force microscope (AFM) nanomanipulation.…”

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confidence: 99%

“…Plasmonic cavities, on the other hand, achieve high values of C while maintaining moderate Q values because of their ultrasmall modal volume (7)(8)(9)(10). The relaxed spectral alignment requirements facilitate the experimental realization of various quantum phenomena, such as collective photon emission from a small ensemble of emitters (11) and single photon sources with tunable statistical properties (12).…”

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confidence: 99%

Single quantum dot controls a plasmonic cavity’s scattering and anisotropy

Hartsfield

Chang

Yang

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

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Plasmonic cavities represent a promising platform for controlling light-matter interaction due to their exceptionally small mode volume and high density of photonic states. Using plasmonic cavities for enhancing light's coupling to individual two-level systems, such as single semiconductor quantum dots (QD), is particularly desirable for exploring cavity quantum electrodynamic (QED) effects and using them in quantum information applications. The lack of experimental progress in this area is in part due to the difficulty of precisely placing a QD within nanometers of the plasmonic cavity. Here, we study the simplest plasmonic cavity in the form of a spherical metallic nanoparticle (MNP). By controllably positioning a semiconductor QD in the close proximity of the MNP cavity via atomic force microscope (AFM) manipulation, the scattering spectrum of the MNP is dramatically modified due to Fano interference between the classical plasmonic resonance of the MNP and the quantized exciton resonance in the QD. Moreover, our experiment demonstrates that a single two-level system can render a spherical MNP strongly anisotropic. These findings represent an important step toward realizing quantum plasmonic devices.optical spectroscopy | hybrid nanostructures | quantum systems | plasmonic cavities | Fano resonance M any quantum network and quantum information processing schemes build upon the enhanced light-matter interaction between a single quantum emitter and a cavity, enabling the effective conversion between photonic and matterbased quantum states (1-4). For example, if the absorption of a photon by a single atom placed inside a cavity can render it transparent to a second photon, then a variety of promising quantum information processing devices can be envisioned including quantum phase gates and repeaters (5). Such QED effects require a high atomic cooperativity c ¼ g 2 γk , where the coupling strength g 2 ∝ 1=V is inversely proportional to the volume of the cavity mode V (6). γ and k are the linewidth of the atomic transition and the cavity mode, respectively. Typically, a high cavity quality factor Q (or low k) of conventional photonic cavities is required to compensate for relatively large (diffraction-limited) mode volumes and comes at a cost: The narrow linewidth of cavity modes places stringent requirements on their spectral alignment with the frequencies of quantum transitions. Plasmonic cavities, on the other hand, achieve high values of C while maintaining moderate Q values because of their ultrasmall modal volume (7-10). The relaxed spectral alignment requirements facilitate the experimental realization of various quantum phenomena, such as collective photon emission from a small ensemble of emitters (11) and single photon sources with tunable statistical properties (12).Prior experiments exploring cavity QED effects associated with single emitters coupled to plasmonic cavities or waveguides focused almost exclusively on the observations of reducing the emitter's lifetime due to the enhanced radiative (propor...

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“…Therefore, a single photon transport based on the real-space method [4,5] has a period of explosive growth, including the scattering properties of the single photon interacting with quantum emitters which have various structures [4][5][6][7][8][9][10][16][17][18][19]. Recently, optical properties of a complex nanosystem which combines a SQD and a MNP, such as a nonlinear Fano effect [19], the creation of controlled Rabi oscillations [20], plasmonic meta-resonances [21], tunable ultrafast nanoswitches [22], modified resonance fluorescence and photon statistics [23,24], and intrinsic optical bistability [25] have been also investigated widely.…”

Section: Introductionmentioning

confidence: 99%

Coherent Controllable Transport of a Surface Plasmon Coupled to a Plasmonic Waveguide with a Metal Nanoparticle-Semiconductor Quantum Dot Hybrid System

Ko¹,

Kim

Choe³

et al. 2016

Plasmonics

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By using the real-space method, switching of a single plasmon interacting with a hybrid nanosystem composed of a semiconductor quantum dot (SQD) and a metallic nanoparticle (MNP) coupled to one-dimensional surface plasmonic waveguide is investigated theoretically. We discussed that the dipole coupling between an exciton and a localized surface plasmon results in the formation of a hybrid exciton and the transmission and reflection of the propagating single plasmon could be controlled by changing the interparticle distance between the SQD and the MNP and the size of the nanoparticles. The controllable transport of the propagating single surface plasmon by such a nanosystem discussed here could find the significant potential in the design of next-generation quantum devices such as plasmonic switch, single photon transistor and nanolaser and quantum information.

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Quantum Plasmonics with Quantum Dot-Metal Nanoparticle Molecules: Influence of the Fano Effect on Photon Statistics

Cited by 312 publications

References 29 publications

Light scattering under nanofocusing: Towards coherent nanoscopies

Light scattering under nanofocusing: Towards coherent nanoscopies

Single quantum dot controls a plasmonic cavity’s scattering and anisotropy

Coherent Controllable Transport of a Surface Plasmon Coupled to a Plasmonic Waveguide with a Metal Nanoparticle-Semiconductor Quantum Dot Hybrid System

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