Abstract
We report the first observation of strong and well-resolved excitons in absorption at room temperature and long wavelength (~ 1.6 μm). We also present the first measurements of exciton saturation and absorption recovery using picosecond IR lasers at these wavelengths. The samples consisted of Ga0.47In0.53As/Al0.48In0.52As multiple-quantum-well structures (MQWS) grown by molecular beam epitaxy lattice matched on InP substrates.
© 1985 Optical Society of America
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