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Quantum polaritonics with semiconductor nanostructures, Theoretical Physics – PhD (Funded)


Project Description

The University of Exeter’s College of Engineering, Mathematics and Physical Sciences, is inviting applications for a fully-funded PhD studentship to commence in February 2020 or as soon as possible thereafter. For eligible students the studentship will cover UK/EU/International tuition fees plus an annual tax-free stipend of at least £15,009 for 3.5 years full-time, or pro rata for part-time study. The student would be based in the Department of Physics and Astronomy in the College of Engineering, Mathematics and Physical Sciences at the Streatham Campus in Exeter.

Project Description:
The aim of the advertised PhD programme is to theoretically study nonlinear interaction of photons being strongly coupled to semiconductor nanostructures in various geometries. Recently, the field of strong light-matter coupling, where confined cavity photons are hybridised with excitons in solids, has gained much attention as an excellent platform for nonlinear optics. Resulting polaritonic quasiparticles offer relatively long coherence time, and can be used for creating fast optoelectronic components. Their potential for quantum applications was noted [Nature Materials 18, 200 (2019)]. At the same time, the limited value of nonlinearity in conventional polaritonic systems does not allow to enter the genuine single quantum level, and the improved theoretical understanding of nonlinear polaritonic processes is needed.

The main objective of the PhD work is to identify semiconductor nanostructures where effective photon-photon interactions are enhanced. The potential candidates include two-dimensional materials and bilayer structures, polaritonic lattices of lithographically patterned optical resonators, and organic semiconductors in microcavities. The candidate will develop theoretical models for systems at strong coupling and engage into experimental collaborations for implementation of successful schemes. Particular attention will be devoted to the optomechanical interaction in monolayer-thick membranes made of transition metal dichalcogenides, where qualitatively new nonlinearity regime is expected.

This award provides annual funding to cover UK/EU/International tuition fees and a tax-free stipend. The studentship will be awarded on the basis of merit for 3.5 years of full-time study to commence in February 2020.

Funding Notes

The University of Exeter’s College of Engineering, Mathematics and Physical Sciences, is inviting applications for a fully-funded PhD studentship to commence in February 2020 or as soon as possible thereafter. For eligible students the studentship will cover UK/EU/International tuition fees plus an annual tax-free stipend of at least £15,009 for 3.5 years full-time, or pro rata for part-time study. The student would be based in the Department of Physics and Astronomy in the College of Engineering, Mathematics and Physical Sciences at the Streatham Campus in Exeter.

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