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arxiv: 0705.0870 · v1 · submitted 2007-05-07 · ❄️ cond-mat.mtrl-sci

THz emission from ultrafast optical orientation

classification ❄️ cond-mat.mtrl-sci
keywords ultrafastaccompanyingcirculardensitydetectableemissionenoughexcitation
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We show both theoretically and experimentally that the magnetization density accompanying ultrafast excitation of a semiconductor with circular polarized light varies rapidly enough to produce a detectable THz field.

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