Applied Physics Letters · 1992 · 101 citations · 18 references
Natural SciencesMaterials SciencePhysicsOptical MaterialsOpticsSemiconductor MaterialsNonlinear Optical MaterialsNonlinear OpticsOptical Properties Of SemiconductorsQuantum ConfinementQuantum DotsSemiconductor PhysicsNonlinear Optical PropertiesNonlinear Refractive IndexOptical Confinement StructuresOptical PropertiesPhoton AbsorptionRefractive Index DeterminationSemiconductor NanostructuresTwo-photon Absorption
Quantum-confined nanocrystallites of GaAs are fabricated in porous Vycor glass and the bound electronic nonlinear refractive index, the two-photon absorption coefficient, and the refraction from carriers generated by two-photon absorption are simultaneously determined using the Z-scan method and compared to those of bulk GaAs. The measured nonlinear refractive index is an order of magnitude larger than that of bulk GaAs at 1060 nm.
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Quantum size effects on photoluminescence in ultrafine Si particles
H. Takagi, H. Ogawa, Yuzo Yamazaki et al. · Applied Physics Letters · 1990 · 874 citations