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Conferences > UP > 1992 > TUC > TUC3

Fast Optical Nonlinearities in Semiconductor Quantum Dots

G. Tamulaitis, R. Baltramiejūnas, S. Pakalnis, and A. I. Ekimov

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Abstract

In comparison with bulk crystals, semiconductor-doped glasses (SDG) attract a specific interest particulary due to short relaxation times of their optical nonlinearities. The investigation of the fastest room-temperature nonlinearities of SDG by means of excite-and-probe technique is reported on in the paper. We used the third harmonic of KGd(WO4)2: Nd3+ laser radiation (FWHM duration 5 ps, quantum energy 3.05 eV) for band-to-band excitation of semiconductor microcrystals, and the output of parametric generator, pumped by the second harmonic of the same laser, for probing.

© 1992 The Author(s)

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