Superlinear Increase of Photocurrent due to Stimulated Scattering into a Polariton Condensate
arXiv:1710.10920 · doi:10.1103/PhysRevB.98.045301
Abstract
We show that when a monopolar current is passed through an n-i-n structure, superlinear photocurrent response occurs when there is a polariton condensate. This is in sharp contrast to the previously observed behavior for a standard semiconductor laser. Theoretical modeling shows that this is due to a stimulated exciton-exciton scattering process in which one exciton relaxes into the condensate, while another one dissociates into an electron-hole pair.
arXiv comment17 pages with 10 figures
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