Year: 2014
Type: article
Abstract: Using an effective medium approach, we describe how, by combining mercury-cadmium-telluride semiconductor alloys with band gap energies of opposite signs, it may be possible to design a superlattice where the electrons have isotropic zero-effective mass and a single valley linear energy-momentum dispersion. We demonstrate that, because of the zero-mass property, the superlattice may have a strong nonlinear optical response.
Source: Physical Review B
Authors: Mário G. Silveirinha, Nader Engheta
Institutions: University of Coimbra, University of Pennsylvania
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1990629403