Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics

Controlled Assembly of an Ultrafast Single-Photon Source

Oksana Makarova, Simeon Bogdanov, Xiaohui Xu, Deesha Shah, Aleksandr S. Baburin, I. A. Ryzhikov, Soham Saha, Ilya A. Rodionov, A.V. Kildisbev, Alexandra E. Boltasseva, Vladimir M. Shalaev

Published May 5, 2019• 0 citations
Publisher

Abstract

We demonstrate a technique for highly controllable assembly of single-photon sources coupled to plasmonic nanoantennas with optimal emitter positioning on the nanoscale, resulting in fluorescence decay rates beyond 10 GHz in single nitrogen-vacancy centers. © 2019 The Author(s)
DOI
10.23919/cleo.2019.8749924

Related papers

Controlled Assembly of an Ultrafast Single-Photon Source

Oksana Makarova, Simeon Bogdanov, Xiaohui Xu +8 more

We demonstrate a technique for highly controllable assembly of single-photon sources coupled to plasmonic nanoantennas with optimal emitter positioning on the nanoscale, resulting in fluorescence decay rates beyond 10 GHz in single nitrogen-vacancy centers.

Conference on Lasers and Electro-Optics•Jan 1, 2019•0 citations

DNA-assembled plasmonic nanodiamonds: bright and stable single-photon emitters

Ishan Barman, Swati Tanwar

Unlocking the quantum potential of nitrogen-vacancy (NV) centers in diamonds has led to innovative advancements in sensing applications. By coupling NV centers with plasmonic nanostructures, ultrasensitive biolabels are envisioned. To this end, we exploit DNA self-assembly to create hybrid plasmonic nanodiamonds, featuring a closed nanocavity encapsulating a single nanodiamond. Correlated spectroscopy reveals enhanced brightness and emission rates, crucial for quantum sensing. This synergy between plasmonics and diamond fluorescence augments photon emission intensity and accelerates emission rates, enabling improved temporal resolution. These nanodiamonds hold promise as stable single-photon sources and versatile platforms for probing quantum effects in biology. This talk highlights the development, properties, and potential applications of these nanodiamonds, bridging quantum sensing and biomedicine, and fostering transformative changes in biophotonics.

Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications•Mar 13, 2024•0 citations

Plasmon-enhanced single photon emission from a nano-assembled metal-diamond hybrid structure

Stefan Schietinger, Michael Barth, Tim Schröder +2 more

We demonstrate the controlled assembly of diamond nanocrystals and gold nanoparticles, thus enhancing the emission properties of single nitrogen-vacancy color centers and realizing an efficient and stable single photon source at room-temperature.

Quantum Electronics and Laser Science Conference•Jan 1, 2009•0 citations

Nanoassembled quantum photonic devices with nanodiamond-based color centers

Simeon Bogdanov, Oksana Makarova, Ilya A. Rodionov +2 more

Color centers in nanodiamonds are promising candidates to realize high-bandwidth quantum optical devices integrated on mature photonic platforms. However, both the optical properties of these emitters and the geometries of host nanoparticles are highly heterogenous. The interfacing of nanodiamond-based color centers with the on-chip photonic circuitry requires their careful pre-selection and deterministic manipulation with nanoscale precision. We present a suite of recently developed techniques for rapid emitter selection and nanofabrication aimed at realizing deterministically assembled plasmon-enhanced single-photon sources. These techniques include optical nanoparticle metrology, machine learning for quantum optical measurements, probe-assisted nanoantenna assembly and the control of plasmonic cavity volume through photomodification.

Quantum Sensing and Nano Electronics and Photonics•Mar 4, 2022•0 citations

Nanoscale Mapping and Control of Antenna-Coupling Strength for Bright Single Photon Sources

Anshuman Singh, Pablo M. de Roque, Gaëtan Calbris +2 more

Cavity quantum electrodynamics is the art of enhancing light-matter interaction of photon emitters in cavities with opportunities for sensing, quantum information, and energy capture technologies. To boost emitter-cavity interaction, that is, coupling strength g, ultrahigh quality cavities have been concocted yielding photon trapping times of microsecondsy to milliseconds. However, such high- Q cavities give poor photon output, hindering applications. To preserve high photon output, it is advantageous to strive for highly localized electric fields in radiatively lossy cavities. Nanophotonic antennas are ideal candidates combining low- Q factors with deeply localized mode volumes, allowing large g, provided the emitter is positioned exactly right inside the nanoscale mode volume. Here, with nanometer resolution, we map and tune the coupling strength between a dipole nanoantenna-cavity and a single molecule, obtaining a coupling rate of g max ∼ 200 GHz. Together with accelerated single photon output, this provides ideal conditions for fast and pure nonclassical single photon emission with brightness exceeding 10 9 photons/sec. Clearly, nanoantennas acting as “bad” cavities offer an optimal regime for strong coupling g to deliver bright on-demand and ultrafast single photon nanosources for quantum technologies.

Nano Letters•Mar 23, 2018•46 citations

Ultrabright room-temperature single-photon emission from nanodiamond nitrogen-vacancy centers with sub-nanosecond excited-state lifetime

Simeon Bogdanov, Mikhail Y. Shalaginov, Alexei Lagutchev +7 more

Ultrafast emission rates obtained from quantum emitters coupled to plasmonic nanoantennas have recently opened fundamentally new possibilities in quantum information and sensing applications. Plasmonic nanoantennas greatly improve the brightness of quantum emitters by dramatically shortening their fluorescence lifetimes. Gap plasmonic nanocavities that support strongly confined modes are of particular interest for such applications. We demonstrate single-photon emission from nitrogen-vacancy (NV) centers in nanodiamonds coupled to nanosized gap plasmonic cavities with internal mode volumes about 10 000 times smaller than the cubic vacuum wavelength. The resulting structures features sub-nanosecond NV excited-state lifetimes and detected photon rates up to 50 million counts per second. Analysis of the fluorescence saturation allows the extraction of the multi-order excitation rate enhancement provided by the nanoantenna. Efficiency analysis shows that the NV center is producing up to 0.25 billion photons per second in the far-field.

arXiv:1711.09481•Nov 26, 2017•3 citations
Unlocking the quantum potential of nitrogen-vacancy (NV) centers in diamonds has led to innovative advancements in sensing applications. By coupling NV centers with plasmonic nanostructures, ultrasensitive biolabels are envisioned. To this end, we exploit DNA self-assembly to create hybrid plasmonic nanodiamonds, featuring a closed nanocavity encapsulating a single nanodiamond. Correlated spectroscopy reveals enhanced brightness and emission rates, crucial for quantum sensing. This synergy between plasmonics and diamond fluorescence augments photon emission intensity and accelerates emission rates, enabling improved temporal resolution. These nanodiamonds hold promise as stable single-photon sources and versatile platforms for probing quantum effects in biology. This talk highlights the development, properties, and potential applications of these nanodiamonds, bridging quantum sensing and biomedicine, and fostering transformative changes in biophotonics.
Color centers in nanodiamonds are promising candidates to realize high-bandwidth quantum optical devices integrated on mature photonic platforms. However, both the optical properties of these emitters and the geometries of host nanoparticles are highly heterogenous. The interfacing of nanodiamond-based color centers with the on-chip photonic circuitry requires their careful pre-selection and deterministic manipulation with nanoscale precision. We present a suite of recently developed techniques for rapid emitter selection and nanofabrication aimed at realizing deterministically assembled plasmon-enhanced single-photon sources. These techniques include optical nanoparticle metrology, machine learning for quantum optical measurements, probe-assisted nanoantenna assembly and the control of plasmonic cavity volume through photomodification.
Cavity quantum electrodynamics is the art of enhancing light-matter interaction of photon emitters in cavities with opportunities for sensing, quantum information, and energy capture technologies. To boost emitter-cavity interaction, that is, coupling strength g, ultrahigh quality cavities have been concocted yielding photon trapping times of microsecondsy to milliseconds. However, such high- Q cavities give poor photon output, hindering applications. To preserve high photon output, it is advantageous to strive for highly localized electric fields in radiatively lossy cavities. Nanophotonic antennas are ideal candidates combining low- Q factors with deeply localized mode volumes, allowing large g, provided the emitter is positioned exactly right inside the nanoscale mode volume. Here, with nanometer resolution, we map and tune the coupling strength between a dipole nanoantenna-cavity and a single molecule, obtaining a coupling rate of g max ∼ 200 GHz. Together with accelerated single photon output, this provides ideal conditions for fast and pure nonclassical single photon emission with brightness exceeding 10 9 photons/sec. Clearly, nanoantennas acting as “bad” cavities offer an optimal regime for strong coupling g to deliver bright on-demand and ultrafast single photon nanosources for quantum technologies.
Ultrafast emission rates obtained from quantum emitters coupled to plasmonic nanoantennas have recently opened fundamentally new possibilities in quantum information and sensing applications. Plasmonic nanoantennas greatly improve the brightness of quantum emitters by dramatically shortening their fluorescence lifetimes. Gap plasmonic nanocavities that support strongly confined modes are of particular interest for such applications. We demonstrate single-photon emission from nitrogen-vacancy (NV) centers in nanodiamonds coupled to nanosized gap plasmonic cavities with internal mode volumes about 10 000 times smaller than the cubic vacuum wavelength. The resulting structures features sub-nanosecond NV excited-state lifetimes and detected photon rates up to 50 million counts per second. Analysis of the fluorescence saturation allows the extraction of the multi-order excitation rate enhancement provided by the nanoantenna. Efficiency analysis shows that the NV center is producing up to 0.25 billion photons per second in the far-field.