8 Apr 2024
Job Information
- Organisation/Company
CNRS- Department
C2N- Research Field
Physics » Optics
Physics » Applied physics
Engineering » Communication engineering- Researcher Profile
First Stage Researcher (R1)- Country
France- Application Deadline
30 Apr 2024 - 23:59 (Europe/Paris)- Type of Contract
Temporary- Job Status
Full-time- Offer Starting Date
1 Oct 2024- Is the job funded through the EU Research Framework Programme?
HE / EIC- Reference Number
PhD-1- Is the Job related to staff position within a Research Infrastructure?
No
Offer Description
PhD position offer, as part of the Horizon Europe PathfinderOpen project CIRCULIGHT
Integrated photonics is explored for a wide range of applications like integrated optical communication for datacom and telecom, bio- or gas-sensing for environment, or quantum cryptography. In order to minimize and to densify photonic circuits, numerous optical devices must be integrated together efficiently and without crosstalk. To successfully achieve this integration, performing integrated isolators or circulators [1,2], which both require non-reciprocal light transmission, are required but not yet available. Indeed, their realization remains a major challenge.
The most efficient non-reciprocal transmission in planar waveguides is based on Transverse Magneto-Optical Kerr effect (TMOKE) at the interface between a MO material layer and the waveguide. However MO effect often remains perturbative and insufficient. Several hybrid integration in photonic platform approaches aim at enhancing the non-reciprocal MO properties. A particularly promising device structure has been proposed and numerically demonstrated in Cimphonie Team (C2N) in 2021 [3]. The principle, called magneto-biplasmonic, explores the TMOKE enhanced by both the surface plasmon polaritons and coupled modes system in a slot waveguide. Here TMOKE induces asymmetrization of the coupled modes profiles, which depends on the propagation direction: the optical energy carried by these modes doesn’t follow the same path in the forward and backward directions. This property is used to realize non-reciprocal optical transmission.
This new principle brings a breakthrough in this research field: yet, it has been only theoretically described and the first experimental demonstration is still lacking. This concept will be developed within the Horizon Europe PathfinderOpen project CIRCULIGHT started in April 2024 in order to demonstrate a magneto-biplasmonic circulator.
In this context the main objective of the PhD is to experimentally demonstrate the magneto-biplasmonic effect, using and adapting a Scanning-Near-Field Microscope (SNOM). A commercial SNOM is available in the host team, and the setup will be further developed inorder to characterize MO and plasmonic guided devices.
references
1. D. Jalas, A. Petrov, M. Eich, W. Freude, S. Fan, Z. Yu, R. Baets, M. Popović, A. Melloni, J. D. Joannopoulos, M. Vanwolleghem, C. R.Doerr, and H. Renner, 'What is-and what is not-an optical isolator,' Nature Photonics 7, 579–582 (2013).
2. B. J. H. Stadler and T. Mizumoto, 'Integrated magneto-optical materials and isolators: A review,' IEEE Photonics Journal 6, (2014).
3. Sevag Abadian, Giovanni Magno, Vy Yam, and Beatrice Dagens, “Broad-band plasmonic isolator compatible with low-gyrotropymagneto-optical material,” Opt. Express 29(3), 4091-4104 (2021). https://doi.org/10.1364/OE.415969
Requirements
- Research Field
- Physics » Optics
- Education Level
- Master Degree or equivalent
Skills/Qualifications
- scientific education in general physics, photonics, electromagnetic waves, optics, magneto-optics, plasmonics, near-field microscopy.
- ability to realize precision experimentation, and numerical simulations in electromagnetic domain.
- other skills:
- Curiosity for novel research experiences and fields.
- Ability to work in a multipartner project, in english
- Creativity and pro-activity in the search for innovative solutions and approaches.
- Attractivity in experiments and simulations.
- Capability to communicate and share results in a multidisciplinary and multi-nationality environment.
Specific Requirements
The candidate will be fully involved in the following activities:
- experimentally demonstrate the magneto-biplasmonic effect
- develop near-field characterization under magnetic field using a commercial instrument (Neaspec)
- characterize non-reciprocal components (optical circulator) developed as part of the European project CIRCULIGHT.
- Languages
- ENGLISH
- Level
- Good
- Languages
- FRENCH
- Research Field
- Physics » Optics
Additional Information
Benefits
The PhD student will be co-supervised by Béatrice Dagens (DR CNRS), Navy YAM (MCF Université Paris-Saclay) and Stefano PIROTTA(Ingénieur de recherche) at C2N, and will collaborate with the CIRCULIGHT European project consortium.
The SNOM instrument is already available to the team. The European CIRCULIGHT project is funding the various aspects of the thesis. Components for characterization are already available.
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- C2N (Centre for Nanoscience and Nanotechnology)
- Country
- France
- City
- Palaiseau
- Postal Code
- 91120
- Street
- 10 boulevard Thomas Gobert
- Geofield
Where to apply
[email protected]
Contact
- City
Palaiseau- Website
https://www.c2n.upsaclay.fr- Street
10 boulevard Thomas Gobert- Postal Code
91120
[email protected]
[email protected]
STATUS: EXPIRED
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