Electro-optic detection of Bloch oscillations
Open Access
- 15 September 1994
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 50 (11), 8106-8109
- https://doi.org/10.1103/physrevb.50.8106
Abstract
The coherent motion of electronic wave packets in the Wannier-Stark regime of externally biased GaAs/ As superlattices is investigated by a time-resolved electro-optic technique. As predicted by the semiclassical theory, electronic wave packets undergo Bloch oscillations. They are observed via anisotropic changes in the refractive index associated with a intraband polarization, which is set up by the coherent spatial motion of electronic wave packets relative to localized holes. The oscillation amplitude depends strongly on the initial excitation conditions. Frequency, amplitude, and dephasing of Bloch oscillations are investigated over a wide range of electric fields. Complementary results to four-wave mixing and THz emission experiments are obtained.
Keywords
This publication has 14 references indexed in Scilit:
- Coherent submillimeter-wave emission from Bloch oscillations in a semiconductor superlatticePhysical Review Letters, 1993
- Observation of Bloch oscillations in a semiconductor superlatticeSolid State Communications, 1992
- Optical investigation of Bloch oscillations in a semiconductor superlatticePhysical Review B, 1992
- Subpicosecond reflective electro-optic sampling of electron-hole vertical transport in surface-space-charge fieldsApplied Physics Letters, 1990
- New photorefractive effect in graded-gap superlatticesPhysical Review Letters, 1989
- Spatial Optical Parametric Coupling of Picosecond Light Pulses and Transverse Relaxation Effect in Resonant MediaJournal of the Physics Society Japan, 1979
- Superlattice and Negative Differential Conductivity in SemiconductorsIBM Journal of Research and Development, 1970
- Dynamics of Band Electrons in Electric and Magnetic FieldsReviews of Modern Physics, 1962
- A theory of the electrical breakdown of solid dielectricsProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1934
- ber die Quantenmechanik der Elektronen in KristallgitternThe European Physical Journal A, 1929