Events

Study of two new configurations for Triple Photon Generation

Friday 26^th March 2021 at 2 pm

Link visio : https://univ-grenoble-alpes-fr.zoom.us/j/95749084822?pwd=REVIM1FVT1g1WTBxejNlaTYyeXpIQT09

The talk will be in French.

Abstract:

The work carried out during this thesis is focused on the design and characterization of photon triplet generators by nonlinear optical processes. These triplets form a new state of light where the three photons can be entangled and lead to efficient quantum information protocols. The pioneering work of the team were focused on a birefringent phase-matching triplet generator based on a bulk crystal in the bi-stimulated regime. The current objective is to move towards the spontaneous regime. Two new technologies were thus considered: on the one hand, single-crystal ridge waveguides for birefringent phase-matching, and on the other hand, quasi-periodically poled crystals for a cascade of 2 quasi-phase matched processes. The complete nonlinear optical characterization of such devices has been performed.

Thesis Directors: Benoît Boulanger & Véronique Boutou (Institut Néel)