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Dirac fermion optics and directed emission from single- and bilayer graphene cavities
Physical review B
High-mobility graphene hosting massless charge carriers with linear dispersion provides a promising platform for electron optics phenomena. Inspired by the physics of dielectric optical microcavities where the photon emission characteristics can be efficiently tuned via the cavity shape, we study corresponding mechanisms for trapped Dirac fermionic resonant states in deformed microdisk graphene billiards and directed emission from those. In such graphene devices a back-gate voltage provides andoi:10.1103/physrevb.104.155436 fatcat:vishsnbzrfhvhdpx456fkdu7vy