27 Apr 2024
Job Information
- Organisation/Company
CNRS- Department
Centre de recherche sur l'hétéroepitaxie et ses applications- Research Field
Engineering
Physics
Technology- Researcher Profile
First Stage Researcher (R1)- Country
France- Application Deadline
17 May 2024 - 23:59 (UTC)- Type of Contract
Temporary- Job Status
Full-time- Hours Per Week
35- Offer Starting Date
1 Jul 2024- Is the job funded through the EU Research Framework Programme?
H2020- Is the Job related to staff position within a Research Infrastructure?
No
Offer Description
-The project CIPHER-Q: “Practical Single-photon device for high-speed real-field quantum cryptography” is a four-year project funded by the French National Research Foundation (ANR). The three main objectives of the project are:
1. Fabricate a GaN-based single-photon emitter operating at room-temperature, emitting photons on-demand at telecommunications wavelengths (1.3micrometers), and being electrically-injected.
2. Integrate the GaN-based single-photon emitters into photonic structures enabling an overall source brightness enhancement. Two different geometries will be studied: in-plane cavities coupled to optical waveguides for lateral photon extraction, and bullseye antennas for normal-to-surface extraction.
3. Demonstrate real-field QKD though optimized protocols adapted to the optical characteristics of our sources and reach state-of-the-art secret key rates for room-temperature sources.
The consortium gathers INPHYNI (Université Côte d'Azûr-CNRS), who is the project coordinator, CRHEA (Université Côte d'Azûr-CNRS), and MAJULAB (CNRS, Université Côte d'Azûr, Sorbonne Université, NTU and NUS).
The project PolArt: “Neuromorphic polariton accelerator” will exploit exciton-polaritons to realize artificial neural networks implemented into hardware, rather than software. Exciton-polaritons are hybrid quasiparticles made of light (photons) and matter (excitons) excitations, and inherit properties of both of them: they can propagate close to photon velocities while displaying much larger nonlinearities. The demonstration of exciton-polaritons at room-temperature has paved the way for practical applications. The EIC-funded PolArt project intends to use exciton-polaritons to realize artificial neural networks implemented into hardware rather than into software platforms. Exciton-polaritons promise for faster processing speeds and lower energy consumptions, contributing to more energy-efficient devices enabling recognition of images, sounds and genome-wide patterns of biomarkers.
The consortium gathers seven partners, including CNRS (MAJULAB, Singapore, and CRHEA, France), University of Warsaw and UNIPRESS (Poland) and CNR Lecce (Italy), with whom the postdoc will be working with.
A post-doctoral position is open in the group of Prof. Jesus Zuniga-Perez as part of the projects CIPHER-Q, funded by the French National Research Foundation (ANR), and project PolArt, funded by the European Union (EIC Pathfinder). The research fellow will be in charge of the nanofabrication of photonic resonators, using CRHEA's clean-room facilities, and of their characterization. These microcavities will be coupled either to single-photon emitters or to excitonic resonances of an active medium to generate exciton-polaritons. The research fellow will contribute to their optical characterization in collaboration with two PhD students and the other projects members. In this context, the fellow will need to interact with academic and industrial partners participating to these ambitious projects addressing the fields of quantum communications and neuromorphic computing.
The postdoc will work on the development of nanofabrication strategies, in a clean-room environment, for fabricating photonic structures in a GaN-based platform and on their deterministic coupling to individual single-photon emitters or excitonic resonances. The candidate will first design the adapted photonic structures thanks to numerical methods, will fabricate them in CRHEA's clean-room (https://www.crhea.cnrs.fr/en/technology-platform.htm ) and will subsequently characterize them. Special attention will be paid to separate the response of the photonic resonators and of the active regions. Successful realizations will be employed to nourish the fibre-based quantum communication channel established between Nice and Sophia Antipolis [1] as well as to realize proof-of-concept neuromorphic accelerators in collaboration with international partners in Poland and Italy.
About the hosting group.
The teams of Prof. Jesus Zuniga Perez (CNRS) has been working on the field of polaritonics for more than 15 years [4], developing large quality factors microcavities, demonstrating polariton Bose-Einstein condensation at room-temperature [5] and the first polariton lasers based on fast-propagating waveguide polaritons [6,7,8]. Since 2020 he has been working, in collaboration with the team of Prof. W. Gao in Singapore, on the development of GaN-based telecom single-photon emitters [9].
Working environment.
CRHEA (Centre de Recherche sur l'Hétéro-Epitaxie et ses Applications, Université Côte d'Azûr-CNRS): The laboratory is leader on the field of III-nitride semiconductor material epitaxy and has been leading the Labex “GaNeX/t” dedicated to GaN. CRHEA has developed a unique expertise on GaN LEDs fabrication, the integration of GaN lasers on sapphire and silicon, as well as the fabrication of optical mcirocavities and nanophotonic resonators based on GaN and associated materials. The team has the expertise and the tools necessary for the structural and optical characterization of the sources as well as the necessary clean-room technology for fabricating photonic structures. More advanced optical characterizations will be performed in collaboration with our national (INPHYNI) or international (MAJULAB, University of Warsaw and CNR Lecce) partners.
IN CRHEA the postdoc will interact with the clean-room team (M. Al-Khalfioui, V. Brändli, S. Chenot, and M. Gromovyii) as well as with the GaN-growth team (B. Alloing, P. M. Coulon, and E. Frayssinet).
What We Offer:
- Opportunity to work on strategic and international projects and to play an instrumental role in the structuration of the burgeoning field of quantum communications and neuromorphic computing.
- Opportunity to supervise PhD students and interns.
- Various collaborations in France, Europe and Singapore within highly stimulating environments.
- Excellent networking opportunities with leading experts from academia and industry.
- Excellent working conditions with competitive salary and benefits (around 3000 Eurs/month gross salary, depending on the background of the candidate).
Requirements
- Research Field
- Engineering
- Education Level
- PhD or equivalent
- Research Field
- Physics
- Education Level
- PhD or equivalent
- Research Field
- Technology
- Education Level
- PhD or equivalent
- Languages
- FRENCH
- Level
- Basic
- Research Field
- Engineering
- Years of Research Experience
- None
- Research Field
- Physics
- Years of Research Experience
- None
- Research Field
- Technology
- Years of Research Experience
- None
Additional Information
Eligibility criteria
- PhD in condensed-matter physics, quantum optics or materials science.
- Strong skills in nanofabrication in a clean-room environment will be a strong plus.
- Knowledge of numerical simulations
- Excellent analytical, organizational, and communication skills.
- Creativity
Additional comments
- PhD in condensed-matter physics, quantum optics or materials science. A PhD devoted to nanofabrication and/or quantum/nonlinear optics will be a plus, though not necessary.
- Strong skills in nanofabrication in a clean-room environment will be a strong plus.
- Knowledge of numerical simulations (e.g. FDTD methods) will be useful.
- Excellent analytical, organizational, and communication skills.
- Capacity to develop and nurture crossed-disciplinary networks, in particular at international level.
- Proven track record of published research and presentations in relevant fields for the current position.
- Creativity and ability to think out of the box.
- Website for additional job details
https://emploi.cnrs.fr/Offres/CDD/UMR7073-MICPEF-071/Default.aspx
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- Centre de recherche sur l'hétéroepitaxie et ses applications
- Country
- France
- City
- VALBONNE
- Geofield
Where to apply
- Website
https://emploi.cnrs.fr/Candidat/Offre/UMR7073-MICPEF-071/Candidater.aspx
Contact
- City
VALBONNE- Website
http://www.crhea.cnrs.fr/
STATUS: EXPIRED