Direct measurement of light–matter energy exchange inside a microcavity

A. D. Jameson, J. L. Tomaino, Y. S. Lee, G. Khitrova, H. M. Gibbs, C. N. Böttge, A. C. Klettke, M. Kira, S. W. Koch

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We demonstrate that one can directly measure the time evolution of light–matter interaction in a semiconductor microcavity by tracking how the optical response is changed by strong single-cycle terahertz (THz) pulses. A short THz pulse transiently interrupts the interaction of the quantum-well microcavity with the light mode and resets the polaritonic light–matter oscillations at THz frequencies. This THz-reset protocol can provide novel insights into the light–matter coupling dynamics in a wide range of photonic materials such as plasmonic and organic systems.

Original languageEnglish (US)
Pages (from-to)276-280
Number of pages5
Issue number5
StatePublished - 2014


  • Microcavities
  • Spectroscopy, terahertz
  • Ultrafast processes in condensed matter, including semiconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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