Japanese Journal of Applied Physics · 2001 · 10 citations · 21 references
Natural SciencesElectrical EngineeringOptoelectronicsSemiconductor MaterialsSpectroscopyAbsorption SpectroscopyLaser PhysicsLaser SpectroscopyOptical Properties Of SemiconductorsOptical SpectroscopyQuantum WellsAbsorption SpectraFemtosecond Laser PulsesIntersubband TransitionsOptical Absorption In Quantum WellsOptical Absorption SpectraPump-probe SpectroscopySaturationTemperature Dependence Of Absorption Spectra
A lineshape analysis is carried out to deduce the homogeneous linewidth from temperature dependent absorption spectra on the intersubband transitions in InGaAs/AlAsSb quantum wells. Using this linewidth and the pump-probe relaxation time (≈ 2.1 ps) at room temperature, we estimate the saturation intensity to be 52±5 MW/cm 2 which shows an agreement with the value obtained from a saturation measurement using a femtosecond laser.
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Electronic properties of two-dimensional systems
Tsuneya Ando, A. B. Fowler, Frank Stern · Reviews of Modern Physics · 1982 · 7.4K citations
Natural Sciences, Chemistry, Physics +16
Quantum-well infrared photodetectors
B. F. Levine · Journal of Applied Physics · 1993 · 1.7K citations