Description du sujet de thèse

The dynamic nonlinear regimes of semiconductor lasers have been studied for nearly three decades. Remarkably, this response can be likened to a neuronal or excitable response, where the device responds to a perturbation by emitting a pulse. Despite the progress made in the field, the use of such lasers in photonic integrated circuits to create neural networks is still compromised due to their size and energy consumption. The main objective of this thesis is to develop a new type of semiconductor laser diode that meets the requirements for integration into an integrated circuit. This will involve designing, fabricating, and characterizing nonlinear nanolaser diodes that can provide the functionality of a neuron's activation function. These devices will then be used in a circuit to demonstrate the potential of this new type of neural network.

Role:
- Design, simulation, and modeling of semiconductor photonic crystal nanocavities tailored for spiking behavior.
- Fabrication and optimization of nanoscale laser devices using state-of-the-art semiconductor processing techniques.
- Experimental characterization of spiking nanolasers, including their optical properties, dynamics, and integration into larger photonic circuits.
- Collaboration with other research groups within the national project consortium."

Contexte de travail

The PhD student will benefit from a stimulating scientific environment at the Institut de Physique de Nice. They will be supervised by a team of experts in the field. This project offers a unique opportunity to contribute to innovative industrial developments and to publish high-impact results

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

The position is in a sector subject to the protection of scientific and technical potential (PPST) and therefore requires, in accordance with regulations, that your appointment be authorized by the competent authority of the MESR.