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Blueshift of the TO Phonon Resonance in GaAs by Femtosecond Electron-Hole Excitation

K. Reimann, A. Ghalgaoui, M. Woerner, T. Elsaesser, C. Flytzanis, and K. Biermann

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Abstract

After electron-hole generation by femtosecond near-infrared pulses, the TO-phonon resonance in GaAs is blueshifted by 100 GHz as observed via a fourth-order non-linear THz emission.

© 2020 The Author(s)

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