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Watching bare charges get dressed in an ultrabroadband THz experiment

  • Rupert Huber
  • , Florian Tauser
  • , Andreas Brodschelm
  • , Max Bichler
  • , Gerhard Abstreiter
  • , Alfred Leitenstorfer
  • Technical University of Munich
  • Walter Schottky Institut

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In a photoexcited electron-hole plasma in GaAs, we test a key concept of many-body physics: the formation of dressed quasiparticles. A novel spectroscopic technique based on ultrabroadband THz electro-optics allows us to resolve the mid-infrared polarization response of the system with sub-cycle resolution of the electric field amplitude and phase. In this way, we directly observe the transient buildup of Coulomb screening on a femtosecond time scale.

Original languageEnglish
Pages (from-to)365-367
Number of pages3
JournalSpringer Series in Chemical Physics
Volume71
DOIs
StatePublished - 2003

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