Photon antibunching in the fluorescence of individual color centers in diamond

Brouri, Rosa; Beveratos, Alexios; Poizat, Jean‐Philippe; Grangier, Philippe

doi:10.1364/ol.25.001294

Cited by 566 publications

(487 citation statements)

References 16 publications

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“…In Figure 1f the theoretical fit, which is marked by a red line, is compared with the experimental data yielding a cross-section of 2×10 − 17 cm 2 for a single phosphorescent Ir(piq) 3 molecule, which is comparable to fluorescent molecules and is in agreement with the behaviour of the intensity dependence of k 31 (Fig. 1e).…”

Section: Methodssupporting

confidence: 70%

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Electrically driven photon antibunching from a single molecule at room temperature

et al. 2012

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single-photon emitters have been considered for applications in quantum information processing, quantum cryptography and metrology. For the sake of integration and to provide an electron photon interface, it is of great interest to stimulate single-photon emission by electrical excitation as demonstrated for quantum dots. Because of low exciton binding energies, it has so far not been possible to detect sub-Poissonian photon statistics of electrically driven quantum dots at room temperature. However, organic molecules possess exciton binding energies on the order of 1 eV, thereby facilitating the development of an electrically driven single-photon source at room temperature in a solid-state matrix. Here we demonstrate electroluminescence of single, electrically driven molecules at room temperature. By careful choice of the molecular emitter, as well as fabrication of a specially designed organic lightemitting diode structure, we were able to achieve stable single-molecule emission and detect sub-Poissonian photon statistics.

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Section: Methodssupporting

confidence: 70%

“…4a). The relationship between background-corrected and -uncorrected correlation functions is established by Brouri et al 31 : …”

Section: Methodsmentioning

confidence: 99%

Electrically driven photon antibunching from a single molecule at room temperature

et al. 2012

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“…Further analysis of the experimental data requires a mathematical formulation of the autocorrelation second order coherence function g 2 (τ ), as provided in Ref. 15, with correction for the superimposed uncorrelated background emission,…”

Section: Resultsmentioning

confidence: 99%

Polarized single photon emission and photon bunching from an InGaN quantum dot on a GaN micropyramid

Jemsson

Machhadani²,

Holtz³

et al. 2015

Nanotechnology

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We report on excitonic single photon emission and biexcitonic photon bunching from an InGaN quantum dot formed on the apex of a hexagonal GaN micropyramid. An approach to suppress uncorrelated emission from the pyramid base is proposed, a metal film is demonstrated to effectively screen background emission and thereby significantly enhance the signal-to-background ratio of the quantum dot emission. As a result, the second order coherence function at zero time delay g (2) (0) is significantly reduced (to g (2) (0) = 0.24, raw value) for the excitonic autocorrelation at a temperature of 12 K under continuous wave excitation, and a dominating single photon emission is demonstrated to survive up to 50 K. The deterioration of the g (2) (0)-value at elevated temperatures is well understood as the combined effect of reduced signal-to-background ratio and limited time resolution of the setup. This result underlines the great potential of site controlled pyramidal dots as sources of fast polarized single photons.

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“…One system particularly well suited for this application is the nitrogen vacancy center (NV center) in diamond. NV centers have already found numerous applications ranging from quantum information science [17], single-photon generation [18,19] and quantum metrology [20][21][22][23][24][25][26] to fluorescence-based bioimaging [27]. Important for the present work is that the NV center exhibits stable photoluminescence at room temperature (unlike most quantum dots that suffer from blinking) and the center's optical properties are preserved when the diamond host takes the form of a nanocrystal.…”

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Nanoscale Fluorescence Lifetime Imaging of an Optical Antenna with a Single Diamond NV Center

et al. 2013

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Abstract:Solid-state quantum emitters, such as artificially engineered quantum dots or naturally occurring defects in solids, are being investigated for applications ranging from quantum information science and optoelectronics to biomedical imaging. Recently, these same systems have also been studied from the perspective of nanoscale metrology. In this letter we study the near-field optical properties of a diamond nanocrystal hosting a single nitrogen vacancy center. We find that the nitrogen vacancy center is a sensitive probe of the surrounding electromagnetic mode structure. We exploit this sensitivity to demonstrate nanoscale fluorescence lifetime imaging microscopy (FLIM) with a single nitrogen vacancy center by imaging the local density of states of an optical antenna.Controlled interaction of light and matter at the nanoscale requires a detailed understanding of the local electromagnetic mode distribution. It has been recognized for some time that, in contrast to the homogeneity exhibited by the vacuum electromagnetic modes in free space, surfaces and nanostructured environments can sculpt the local electromagnetic mode density or local density of optical states (LDOS). A manifestation of this modification, as first pointed out by Purcell [1], is that the excited state lifetime of a quantum object is not an immutable property, but depends sensitively on the system's . Important for the present work is that the NV center exhibits stable photoluminescence at room temperature (unlike most quantum dots that suffer from blinking) and the center's optical properties are preserved when the diamond host takes the form of a nanocrystal. In the following we exploit the previous features to demonstrate, for the first time, the suitability of the NV center for nanoscale FLIM by imaging a nanoscale optical antenna [28].The top panel of Fig. 1a presents an illustration of the FLIM concept. In the first modality a single quantum system (the "probe") is affixed to the vertex of a nanoscale tip and a sample to be interrogated (the "object") is scanned in close proximity to the emitter. The object perturbs the local electromagnetic environment of the probe and modifies its excited state dynamics that can be recorded as a function of the object's x-y coordinates to build an image. A second approach, followed in the present work, is to fix the probe in space, see bottom panel of Fig. 1a, and scan the object through the focus. Again, by monitoring the probe lifetime an image can be recorded. In our experiments a single NV center in a diamond nanocrystal is our probe of the nanoscale LDOS created by the object.

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Photon antibunching in the fluorescence of individual color centers in diamond

Abstract: We observed photon antibunching in the fluorescent light emitted from a single nitrogen-vacancy center in diamond at room temperature. The possibility of generating triggerable single photons with such a solid-state system is discussed.

Cited by 566 publications

References 16 publications

Electrically driven photon antibunching from a single molecule at room temperature

Electrically driven photon antibunching from a single molecule at room temperature

Polarized single photon emission and photon bunching from an InGaN quantum dot on a GaN micropyramid

Nanoscale Fluorescence Lifetime Imaging of an Optical Antenna with a Single Diamond NV Center

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