Anisotropy in second-harmonic generation from reconstructed surfaces of GaAs
- 12 April 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 70 (15) , 2344-2347
- https://doi.org/10.1103/physrevlett.70.2344
Abstract
We report on the first observation of the twofold rotational anisotropy of second-harmonic generation (SHG) in the reflected light from a noncentrosymmetric crystal surface of GaAs(001). We interpret this as meaning that the interference of surface SHG and dipole-allowed bulk SHG having fourfold symmetry results in twofold anisotropy. The degree of anisotropy changes according to the surface reconstruction.Keywords
This publication has 14 references indexed in Scilit:
- Symmetry analysis of vicinal (111) surfaces by optical second-harmonic generationOptics Communications, 1992
- Surface science at atmospheric pressure: Reconstructions on (001) GaAs in organometallic chemical vapor depositionPhysical Review Letters, 1992
- Chemical Shift in Optical Reflection Spectra Observed During III-V Semiconductor Metalorganic Chemical Vapor Deposition Growth by Surface Photo-Absorption MethodJapanese Journal of Applied Physics, 1991
- Vicinal Si(111) surfaces studied by optical second-harmonic generation: Step-induced anisotropy and surface-bulk discriminationPhysical Review B, 1990
- Surface reconstructions of GaAs(100) observed by scanning tunneling microscopyPhysical Review B, 1990
- Direct optical measurement of surface dielectric responses: Interrupted growth on (001) GaAsPhysical Review Letters, 1990
- Optical second-harmonic generation as a surface probe for noncentrosymmetric mediaOptics Letters, 1988
- Phenomenological theory of optical second- and third-harmonic generation from cubic centrosymmetric crystalsPhysical Review B, 1987
- Protection of molecular beam epitaxy grown AlxGa1−xAs epilayers during ambient transferJournal of Vacuum Science and Technology, 1981
- Experimental Verification of the Laws for the Reflected Intensity of Second-Harmonic LightPhysical Review B, 1966