Photovoltage in curved 1D systems

Abstract

Curvature of quantum wire results in intrasubband absorption of IR radiation that induces stationary photovoltage in presence of circular polarization. This effect is studied in ballistic (collisionless) and kinetic regimes. The consideration is concentrated on quantum wires with curved central part. It is shown, that if mean free path is shorter than length of the curved part the photovoltage does not depend on the wire shape, but on the total angle of rotation of wire tangent. It is not the case when mean free path is finite or large. This situation was studied for three specific shapes of wires: "hard angle", "open book" and "$\Omega$-like".

12 pages, 1 figure

References in corpus (6)

• Floquet scattering theory of quantum pumps
• Experimental investigation of the ratchet effect in a two-dimensional electron system with broken spatial inversion symmetry
• Photogalvanic current in artificial asymmetric nanostructures
• Properties of 1D two-barrier quantum pump with harmonically oscillating barriers
• Directing transport by polarized radiation in presence of chaos and dissipation
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Cited by in corpus (2)

• Nanohelices as superlattices: Bloch oscillations and electric dipole transitions
• Edge absorption and pure spin current in 2D topological insulator in the Volkov-Pankratov model