Interaction of picosecond laser pulses with semiconductor quantum dots and wires

V. Dneprovskii, N. Guschina, V. Karavansky, A. Karelina, Victor I Klimov, D. Krupennikov, A. Lipovsky, D. Okorokov, Yu Vandishev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Changes in the transmission of quasi-zero-dimensional CdSe and CdSSe nanocrystals (NCs-quantum dots) and quasi-one-dimensional Porous Silicon (quantum wires) induced by ultrashort laser pulses were investigated with picosecond time resolution using pump and probe technique. The transitions between the energy levels of electrons and holes spatially confined within CdSe and CdSSe NCs and wires of Porous Si were observed as bleaching bands in nonlinear transmission spectra. The induced decrease of absorption was explained by filling of states in quantum dots and wires by photoexcited carriers (saturation effect).

Original languageEnglish
Title of host publicationEuropean Quantum Electronics Conference - Technical Digest
PublisherIEEE
Pages274-275
Number of pages2
Publication statusPublished - 1994
EventProceedings of the 5th European Quantum Electronics Conference - Amsterdam, Neth
Duration: Aug 28 1994Sep 2 1994

Other

OtherProceedings of the 5th European Quantum Electronics Conference
CityAmsterdam, Neth
Period8/28/949/2/94

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Dneprovskii, V., Guschina, N., Karavansky, V., Karelina, A., Klimov, V. I., Krupennikov, D., Lipovsky, A., Okorokov, D., & Vandishev, Y. (1994). Interaction of picosecond laser pulses with semiconductor quantum dots and wires. In European Quantum Electronics Conference - Technical Digest (pp. 274-275). IEEE.