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Title: Spatial dynamics of exciton-polariton condensates in inhomogeneous potentials
Authors: Tan, En Zhi
Keywords: DRNTU::Science::Physics
Issue Date: 2018
Abstract: Exciton-polaritons are hybrid light-matter quasiparticles forming in semiconductor microcavities. By combining the light effective mass of photons with the thermalizing behavior of an electronic system, the particles are able to undergo a form of Bose-Einstein condensation at considerably higher temperature than more traditional condensates of cold-atoms. In addition, exciton-polaritons can be controlled by changing their potential energy landscape, which may have both real and imaginary components (imaginary components corresponding to non-uniform gain and loss). In the first part of the project, the spin-dependent splitting of whispering gallery modes formed in mesa traps is studied and a theoretical model to explain the phenomenon based on the optical spin Hall effect is presented. In the second part of the project, we present a theoretical scheme for the realisation of unidirectional transmission of exciton-polariton signals in a spin-dependent micropillar chain and study the dynamics of such a system.
Schools: School of Physical and Mathematical Sciences 
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Student Reports (FYP/IA/PA/PI)

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