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Charge-Density Excitations at the Surface of a Semiconductor Superlattice: A New Type of Surface Polariton

1983; American Physical Society; Volume: 51; Issue: 10 Linguagem: Inglês

10.1103/physrevlett.51.919

1092-0145

Gabriele F. Giuliani, J. J. Quinn,

Near-Field Optical Microscopy

A new type of surface polariton, which can occur at the surface of a semiconducting superlattice, is introduced. Because of the quantization of the electron energy levels by the superlattice potential this new polariton mode has the remarkable property of being free from Landau damping.