Time-resolved photoluminescence of two-dimensional hot carriers in GaAs-AlGaAs heterostructures
Physical Review Letters 53:19 (1984) 1841-1844
Abstract:
We have studied the picosecond time dependence of luminescence from a two-dimensional electron system following absorption of an ultrashort light pulse. From our measurements we determine the temporal evolution of the carrier temperature, finding that the cooling of hot carriers is suppressed by a factor 60 below that predicted on a three-dimensional nondegenerate-electron model. Additionally, we determine the electron-hole radiative life-time and invoke a hole trap to explain shortened luminescence lifetimes at low carrier densities. © 1984 The American Physical Society.TIME-RESOLVED PHOTOLUMINESCENCE OF TWO-DIMENSIONAL HOT CARRIERS IN GAAS-ALGAAS HETEROSTRUCTURES
PHYSICAL REVIEW LETTERS 53:19 (1984) 1841-1844
Picosecond studies of luminescence of cis polyacetylene
Journal of Physics C: Solid State Physics 16:20 (1983)
Abstract:
The authors find that the lifetime of the 1.9 eV luminescence of cis-polyacetylene isObservations of magnetic domain structures in thick foils of Ni-Fe-Co-Ti alloy
Journal of Magnetism and Magnetic Materials 31-34:PART 2 (1983) 1001-1004
Abstract:
The domain structure of thick foils of a 33.8Ni-51.0Fe-14.0Co-1.2Ti (wt%) alloy has been studied by high voltage transmission Lorentz microscopy. Complex domain structures and wall images have been observed. Periodic domain structures have been interpreted as sets of two-dimensional vortex walls. © 1983.PHOTOTHERMAL DETECTION OF PICOSECOND PHOTOINDUCED DICHROISM.
Journal de Physique (Paris), Colloque 44:10 (1983)