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Proceedings Paper

Ultrafast exciton recombination in PbS quantum dots
Author(s): V. G. Savitski; N. N. Posnov; Alexander M. Malyarevich; Konstantin V. Yumashev; Andrey A. Lipovskii
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Paper Abstract

Bleaching relaxation in PbS-quantum-dots-doped phosphate glasses in dependence on the dot size is presented. The fast bleaching decay component is increased from 14 to 93 ps as the dot size increased from 4.7 to 5.8 nm. The glasses are employed as saturable absorbers for mode-locking and Q-switching of 1.3 µm neodymium lasers. Q-switched pulses of 120 ns (0.1 µJ) in duration (energy) and the average output power of 3 mW from diode-pumped Nd3+:KGW laser and ultrashort pulses of maximum 250 µJ in energy and 150 ps in duration from a Nd3+:YAP laser were obtained.

Paper Details

Date Published: 8 July 2003
PDF: 4 pages
Proc. SPIE 5036, Photonics, Devices, and Systems II, (8 July 2003); doi: 10.1117/12.498356
Show Author Affiliations
V. G. Savitski, International Laser Ctr. (Belarus)
N. N. Posnov, International Laser Ctr. (Belarus)
Alexander M. Malyarevich, International Laser Ctr. (Belarus)
Konstantin V. Yumashev, International Laser Ctr. (Belarus)
Andrey A. Lipovskii, S.I. Vavilov State Optical Institute (Russia)


Published in SPIE Proceedings Vol. 5036:
Photonics, Devices, and Systems II
Miroslav Hrabovsky; Dagmar Senderakova; Pavel Tomanek, Editor(s)

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