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Abstract's Details

Ultrafast Nonlinear THz Control of Carrier Dynamics
Abstract IDUMTG:4-5 
PresenterAaron  Lindenberg
Presentation TypeSSRL/LCLS
Full Author ListA. Lindenberg (1,2), H. Wen (1), M. Wiczer (3)
Affiliations(1) PULSE Center, SLAC
(2) Dept. of Materials Science and Engineering, Stanford University
(3) Dept. of Physics, University of Illinois at Urbana Champaign
CategoryMaterials Science
AbstractWe report ultrafast THz-pump THz-probe measurements of electron-hole dynamics in semiconductors. Intense, half-cycle THz pulses, emitted by a laser-produced plasma in air, are observed to induce nonlinear changes in the THz absorption coefficient, associated with free carrier excitation by far below band-gap photons. The mechanisms and applications of this process will be discussed.
Footnotes 
Funding AcknowledgementDOE