Nonresonant Transient Refractive Index Spectroscopy in Semiconductor Quantum Dots

Nonresonant Transient Refractive Index Spectroscopy in Semiconductor Quantum Dots

We report transient refractive index change in semiconductor nanoparticles dispersed in polymethylmethacrylate matrix via pump-probe experiment. At lower pump intensities the detected signal consists of the pulse autocorrelation-shaped part and another part delayed by 300 fs. The latter’s relative i...

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Bibliographic Details
Main Authors: Zharkov D.K., Leontyev A.V., Shmelev A.G., Nikiforov V.G., Lobkov V.S.
Format: Article
Language:English
Published: EDP Sciences 2015-01-01
Series:EPJ Web of Conferences
Subjects:
quantum dots
semiconductor nanoparticles
transient lens
nonlinear refractive index
Online Access:http://dx.doi.org/10.1051/epjconf/201510307006
Description
Summary:We report transient refractive index change in semiconductor nanoparticles dispersed in polymethylmethacrylate matrix via pump-probe experiment. At lower pump intensities the detected signal consists of the pulse autocorrelation-shaped part and another part delayed by 300 fs. The latter’s relative intensity depends on the pump level. However in CdS monocrystal the detected signal was found to lack this second feature completely.
ISSN:2100-014X

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