Congratulations to Nancy Rahbany who obtained the Champagne-Ardenne PhD award. She passed her PhD in 2016 under the supervision of CC and Renaud Bachelot working on 'Towards integrated optics at the nanoscale: plasmon-emitter coupling using plasmonic structures'. She is now doing a post-doc at the Langevin Institute at the ESPCI in Paris.
Just passed my research habilitation (HdR) at the Université Pierre and Marie Curie, Sorbonne Université with the title 'Harnessing light-matter interaction: applications in nanophotonics and quantum technologies' with the jury composed of Jean-Michel Raimond (UPMC, ENS), Elisabeth Giacobino (CNRS, ENS), Carlo Sirtori (Paris Diderot), Rémi Carminati (ESPCI), John Rarity (University of Bristol) and Sébastien Tanzilli (CNRS and Université de Nice).
We are part of a European Innovative Training Network (ITN) that has been accepted on Light-Matter Interface for Enabling Quantum Technologies (LIMQUET) with the University of Bourgogne (project coordinator), the University of Oxford, Darmstad University, EPFL Lausanne, the University of Sussex, the University of Sofia and the companies TeemPhotonics, Qubig and Qutools.
This is the first announcement for the Second Topical Meeting on *Single Photons Single Spins (SPSS II)*, to be held in Troyes, France on *August 29th to September 1st 2017*. Save the date!
The goal of this meeting is to bring together academic and industrial European actors in the fields of
- Spin-photon interfaces,
- Nanoscale single-photon sources and detectors,
- Quantum networks with nanoscale devices,
- Applied quantum nanophotonics,
- Single-spin quantum sensing,
- Fundamental studies with nanoscale structures
Confirmed keynote speakers:
-Natalia Ates, University of Oxford
-Christoph Becher, Saarland University
-Sophia Economou, Virginia Tech
-Chris Erven, KETS and University of Bristol
-Patrick Maletinsky, University of Basel and Qnami
-Boris Naydenov, University of Ulm
-Ruth Oulton, University of Bristol
Please find more information at http://www.cost-nqo.eu/event/spss2017/
*Abstract submission deadline*: May 27th
*Registration deadline*: July 29th
The meeting is organized by the COST Action on 'Nanoscale Quantum Optics' MP1403 and more specifically jointly by the Working Group 1 and Working Group 3 (see more information here http://www.cost-nqo.eu/). We thank the support from the CNRS GdR IQFA on Quantum Engineering (see more information here http://gdriqfa.unice.fr)
The organizing committee,
Christophe Couteau - University of Technology of Troyes - email@example.com
Félix Bussières - University of Geneva -
Thomas Durt - University of Marseille
Anna Fontcuberta i Morral - EPFL Lausanne
Peter Lodahl - Niels Bohr Institute
Jason Smith - Oxford University
Latest article published and entitled: 'Plasmon–emitter interaction using integrated ring grating–nanoantenna structures.' by N. Rahbany, W. Geng, R. Bachelot, & C. Couteau in Nanotechnology 28, 185201 (2017).
Here is the abstract:
Overcoming the diffraction limit to achieve high optical resolution is one of the main challenges in the fields of plasmonics, nanooptics and nanophotonics. In this work, we introduce novel plasmonic structures consisting of nanoantennas (nanoprisms, single bowtie nanoantennas and double bowtie nanoantennas) integrated in the center of ring diffraction gratings. Propagating surface plasmon polaritons (SPPs) are generated by the ring grating and coupled with localized surface plasmons (LSPs) at the nanoantennas exciting emitters placed in their gap. SPPs are widely used for optical waveguiding but provide low resolution due to their weak spatial confinement. In contrast, LSPs provide excellent sub-wavelength confinement but induce large losses. The phenomenon of SPP–LSP coupling witnessed in our structures allows for achieving more precise focusing at the nanoscale, causing an increase in the fluorescence emission of the emitters. Finite-difference time-domain simulations as well as experimental fabrication and optical characterization results are presented to study plasmon–emitter coupling between an ensemble of dye molecules and our integrated plasmonic structures. A comparison is given to highlight the importance of each structure on the photoluminescence and radiative decay enhancement of the molecules.
Grest news for the UTT and the LNIO, the international conference on Near-Field Optics NFO15 will be held at the UTT in Troyes from the 26th to the 30th August 2018.
Latest article published and entitled: 'Integrated optical waveguides in glass for enhanced photoluminescence of nano-emitters.'by J. B. Madrigal, R. Tellez-Limon, F. Gardillou, D. Barbier, W. Geng, C. Couteau, R. Salas-Montiel, & S. Blaize in Applied Optics 55, 10263 (2016).
Here is the abstract:
Integrated optical devices able to control light–matter interactions on the nanoscale have attracted the attention of
the scientific community in recent years. However, most of these devices are based on silicon waveguides, limiting
their use for telecommunication wavelengths. In this contribution, we propose an integrated device that operates
with light in the visible spectrum. The proposed device is a hybrid structure consisting of a high-refractive-index
layer placed on top of an ion-exchanged glass waveguide. We demonstrate that this hybrid structure serves as an
efficient light coupler for the excitation of nanoemitters. The numerical and experimental results show that the
device can enhance the electromagnetic field confinement up to 11 times, allowing a higher photoluminescence
signal from nanocrystals placed on its surface. The designed device opens new perspectives in the generation of
new optical devices suitable for quantum information or for optical sensing.
Just received a cryostat from Attocube for low temperature photoluminescence of nanostructures. Comes with a magnetic field that can go up to 9 T. Nice toy.
Latest article published and entitled: 'Mode-selective quantization and multimodal effective models for spherically layered systems.' authored by D. Dzsotjan, B. Rousseaux, H. R. Jauslin, G. Colas des Francs, C. Couteau, S. Guérin (Phys. Rev. A 94, 023818 (2016).)
Here is the abstract:
We propose a geometry-specific, mode-selective quantization scheme in coupled field-emitter systems which makes it easy to include material and geometrical properties, and intrinsic losses, as well as the positions of an arbitrary number of quantum emitters. The method is presented through the example of a spherically symmetric, nonmagnetic, arbitrarily layered system. We follow it up by a framework to project the system on simpler, effective cavity QED models. Maintaining a well-defined connection to the original quantization, we derive the emerging effective quantities from the full, mode-selective model in a mathematically consistent way. We discuss the uses and limitations of these effective models.
Poster given at the EMP16 - International Conference on Energy, Materials and PhotonicsGdR Ondes Workshop on "Nonlinear and quantum plasmonics" by J. Ph. Girard. The title was 'Nanowire-based Photodetector with High Gain', 10-13 July 2016 in Troyes.
To know more and see the poster, click here.