DocumentCode
1685784
Title
Ultrafast supercontinuum spectroscopy of multiple exciton states in lead chalcogenide nanorods and nanocrystals
Author
Gesuele, F. ; Sfeir, M.Y. ; Koh, W.-K. ; Murray, C.B. ; Heinz, T.F. ; Wong, C.W.
Author_Institution
Opt. Nanostruct. Lab., Columbia Univ., New York, NY, USA
fYear
2012
Firstpage
1
Lastpage
2
Abstract
We examine the multiple exciton population dynamics in lead chalcogenide nanostructures by ultrafast supercontinuum transient absorption. Carrier multiplication is revealed in the limit of low absorbed photon number, along with biexciton dynamics.
Keywords
IV-VI semiconductors; biexcitons; high-speed optical techniques; lead compounds; nanorods; ultraviolet spectra; visible spectra; PbSe; biexciton dynamics; carrier multiplication; lead chalcogenide nanocrystals; lead chalcogenide nanorods; low absorbed photon number; multiple exciton population dynamics; multiple exciton states; ultrafast supercontinuum spectroscopy; ultrafast supercontinuum transient absorption; ultraviolet-visible spectra; Absorption; Excitons; Nanocrystals; Radiative recombination; Spectroscopy; Transient analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location
San Jose, CA
Print_ISBN
978-1-4673-1839-6
Type
conf
Filename
6326876
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