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Conferences > EQEC > 2015 > EG_P > EG_P_5
  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper EG_P_5

Lower-Upper Polariton Interactions Proved with Two-Dimensional Fourier Transform (2DFT) Spectroscopy in Semiconductor Microcavity

N. Takemura, S. Trebaol, V. Kohnle, Y. Léger, M. D. Anderson, M. T. Portella-Oberli, and B. Deveaud

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Abstract

Two-dimensional Fourier transform (2DFT) spectroscopy is a powerful tool commonly used for investigating anharmonic coupling between different molecular vibrational states [1]. We applied this technique to a GaAs based semiconductor microcavity for investigating interactions among lower (LP) and upper (UP) polaritons. The observed 1-quantum and 2-quatum 2DFT experimental spectra are presented in Fig. 1 (a, c). Both spectra show four peak groups that correspond to LP-LP and UP-UP (diagonal peaks) and LP-UP and UP-LP interactions (off-diagonal peaks). Inside each peak, a complex structure can be found.

© 2015 IEEE

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