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Transient Rayleigh scattering: A new probe of picosecond carrier dynamics in a single semiconductor nanowire

Montazeri, Mohammad; Jackson, Howard E; Smith, Leigh M; Yarrison-Rice, Jan M; Kang, Jung-Hyun; Gao, Qiang; Tan, Hoe Hark; Jagadish, Chennupati

Description

Using a new technique, transient Rayleigh scattering, we show that measurements from a single GaAs/AlGaAs core-shell semiconductor nanowire provide sensitive and detailed information on the time evolution of the density and temperature of the electrons and holes after photoexcitation by an intense laser pulse. Through band filling, band gap renormalization, and plasma screening, the presence of a dense and hot electron-hole plasma directly influences the real and imaginary parts of the complex...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/67391
Source: Nano Letters
DOI: 10.1021/nl302767u

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