Current-induced break of inversion symmetry in Si: optical second-harmonic generation induced by a dc current

2007/01/28 by O. A. Aktsipetrov, Vladimir O. Bessonov, Aktsipetrov, O. A. +5
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #FOS: Physical sciences #General Physics (physics.gen-ph) #Optics (physics.optics) #Photosynthetic Processes and Mechanisms #Silicon Nanostructures and Photoluminescence #Spectroscopy and Quantum Chemical Studies

paper · pdf · doi:10.48550/arxiv.physics/0701313

openalex publication_date 2007/01/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The dc-current-induced optical second-harmonic generation is observed at the surface of centrosymmetric single crystal of Si. Surface dc-current with density up to j_max ∼ 10³ A/cm² results in break of inversion symmetry of Si and induces optical second-harmonic generation with intensity that corresponds to the appearance of dipole second-order susceptibility χ^(2)d(j_max)∼ 3 ⋅ 10^-15m/V.

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