Spontaneous light generation in twin semiconductor waveguides
Morgado, T. A.
Silveirinha, M. G.
Spontaneous light generation in twin semiconductor waveguides, Proc Metamorphose International Congress on Advanced Electromagnetic Materials in Microwaves and Optics - METAMATERIALS, Oxford, United Kingdom, Vol. , pp. - , September, 2015.
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Here we study the electromagnetic instabilities in a system formed by two twin semiconductor waveguides separated by a vacuum layer in two different scenarios: (i) semiconductor slabs in relative motion, and (ii) in the presence of an electron drift. It is shown that the flow of electrons can mimic the response of a moving material slab, inducing exponentially growing light oscillations. The oscillations result from the hybridization of the surface plasmon polaritons (SPPs) supported by each air-semiconductor interface.