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Ultrafast carrier dynamics and terahertz conductivity of photoexcited GaAs under electric field
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10.1063/1.2980026
/content/aip/journal/apl/93/10/10.1063/1.2980026
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/10/10.1063/1.2980026
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Experimental apparatus used to collect OPTP spectra.

Image of FIG. 2.
FIG. 2.

One-dimensional pump scans at of 0, 6, and , respectively. Inset: dependence of the terahertz peak value at delay time of .

Image of FIG. 3.
FIG. 3.

The schematic GaAs band structure. Optical photon excites electrons directly into the valley. A fraction of electrons subsequently transfer into the valley at high .

Image of FIG. 4.
FIG. 4.

The complex photoconductivity under of (a) and (b), respectively. The solid lines are the fitting curves using the Drude–Smith model.

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/content/aip/journal/apl/93/10/10.1063/1.2980026
2008-09-08
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast carrier dynamics and terahertz conductivity of photoexcited GaAs under electric field
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/10/10.1063/1.2980026
10.1063/1.2980026
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