Terahertz lightwave electronics and valleytronics

C. P. Schmid, D. Peller, F. Langer, S. Schlauderer, C. Lange, T. Cocker, J. Repp, J. Reimann, J. Güdde, U. Höfer, Stephan W Koch, M. Kira, R. Huber

Research output: Chapter in Book/Report/Conference proceedingConference contribution


As conventional electronics approaches its ultimate limits, novel concepts of fast quantum control have been sought after. Lightwave electronics - the foundation of attosecond science - has opened a new arena by utilizing the oscillating carrier wave of intense light pulses to control electrons faster than a cycle of light. We employ atomically strong terahertz electromagnetic pulses to accelerate electrons through the entire Brillouin zone of solids, drive quasiparticle collisions, and generate high-harmonic radiation as well as high-order sidebands. The unique band structures of topological insulators allow for all-ballistic and quasi-relativistic acceleration of Dirac quasiparticles over distances as large as 0.5 μm. In monolayers of transition metal dichalcogenides, we switch the electrons' valley pseudospin, opening the door to subcycle valleytronics. Finally, we show that lightwave electronics can be combined with ultimate atomic spatial resolution in state-selective ultrafast scanning tunneling microscopy.

Original languageEnglish (US)
Title of host publicationUltrafast Phenomena and Nanophotonics XXIII
EditorsMarkus Betz, Abdulhakem Y. Elezzabi
ISBN (Electronic)9781510624740
StatePublished - Jan 1 2019
Externally publishedYes
EventUltrafast Phenomena and Nanophotonics XXIII 2019 - San Francisco, United States
Duration: Feb 3 2019Feb 6 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceUltrafast Phenomena and Nanophotonics XXIII 2019
Country/TerritoryUnited States
CitySan Francisco


  • Attosecond science
  • High-harmonics generation
  • Lightwave electronics
  • Topological insulators
  • Ultrafast angle-resolved photoemission spectroscopy
  • Ultrafast scanning tunneling microscopy
  • Valleytronics
  • Van der Waals materials

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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