The Hybrid Photonics Labs are constantly looking for talented MSc students interested in carrying PhD projects in exciton-polaritonics. Successful candidates should have a a Masters in Physics, Electrical/Electronic Engineering, Material Science or a related area. We seek candidates with a knowledge of and keen interest in fundamental physics and optics, and a desire to develop skills in experimental photonics, inverse problems, quantum, laser and semiconductor physics.
If you are interested in one of the project below, please contact Dr. Mael Brossard (). For more details about the various research direction of the Hybrid Photonics Labs and for access to our latest publications, please visit our website polaritonics.org.
Inverse scattering problems, namely reconstructing the shape of objects from their scattered intensity distributions occur in many fields of science and technology, such as tomographic imaging (MRI, CT scan), seismology, single shot X-ray scattering and imaging. Solving the inverse scattering problem, in cases where all the phase information is lost, is generally very difficult. This difficulty is alleviated by resorting to some a priori knowledge such as the boundaries within which the object lies (compact support), sparsity or other spatial features. Under such “restrictions”, it is possible to reconstruct the object using iterative algorithms, such as the well-known Gerchberg-Saxton algorithm. Unfortunately, the algorithms are time consuming and do not always converge to the right solution even with advanced computational resources. In this project, we will design and realise a polariton simulator to address inverse scattering problems with the aim to demonstrate solutions within the coherence lifetime of the polariton condensates (10ths of picoseconds; 6-9 orders of magnitude faster than current supercomputers).
The student will join a strong international team of students, postdoctoral and academic staff working together on many aspects of cutting-edge research in polaritonics, laser physics and quantum simulation. This PhD project involves close collaboration and therefore international travel at the University of Southampton and the Weizmann Institute of Science.