Nonlinear optical phenomena and lasing in semiconductor quantum dots and wires

V. Dneprovskii, V. Karavansky, V. Klimov, D. Okorokov, Yu Vandishev

Research output: Contribution to journalConference articlepeer-review


Transmission spectra recovery of CdSe, CdSxSe1-x nanocrystals and porous silicon wires optically excited by ultrashort laser pulses have been studied with picosecond time resolution using pump and probe technique. The transitions between levels of electrons and holes spatially confined within nanocrystals and thin wires were observed as bleaching bands in nonlinear transmission spectra (saturation effect). Spectra and values of third order resonant susceptibility were determined for nanocrystals of different size and porous silicon using the experimentally measured differential transmission spectra.

Original languageEnglish
Pages (from-to)300-311
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - Jan 1 1993
EventPhysical Concepts and Materials for Novel Optoelectronic Device Applications II 1993 - Trieste, Italy
Duration: May 23 1993May 28 1993

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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