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Glasses doped with semiconductor quantum dots (QDs) are being extensively studied as promising materials for various photonics applications (see, e.g.1). The physical properties of such materials allow to obtain the absorption peak spectral position at necessary wavelength simply by varying the QDs’ size. Glasses doped with IV-VI (e.g. PbS) semiconductor QDs are the kind of materials having a small energy band-gap energy (Eg≈0.41 eV) and a large Bohrexciton radius (18 nm), which allow to tune the excitonic peak position from 1 to 3 μm
© 2002 Optical Society of America
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