Light: Science & Applications (May 2022)

Scalable high-repetition-rate sub-half-cycle terahertz pulses from spatially indirect interband transitions

  • Christian Meineke,
  • Michael Prager,
  • Johannes Hayes,
  • Qiannan Wen,
  • Lukas Zheyi Kastner,
  • Dieter Schuh,
  • Kilian Fritsch,
  • Oleg Pronin,
  • Markus Stein,
  • Felix Schäfer,
  • Sangam Chatterjee,
  • Mackillo Kira,
  • Rupert Huber,
  • Dominique Bougeard

DOI
https://doi.org/10.1038/s41377-022-00824-6
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 8

Abstract

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We generate extremely asymmetric sub-half-cycle terahertz waveforms with scalable field strengths at megahertz pulse-repetition rates via ultrafast excitation of spatially indirect interband transitions in tailored quantum well heterostructures.