Observation of bound and antibound states of cavity polariton pairs in a CuCl microcavity

S. Matsuura, Y. Mitsumori, H. Kosaka, K. Edamatsu, K. Miyazaki, D. Kim, M. Nakayama, G. Oohata, H. Oka, H. Ajiki, H. Ishihara

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We observed the antibound state, as well as the bound state, for cavity polariton pairs in a planar CuCl microcavity by spectrally resolved four-wave mixing. We obtained dispersion curves of the bound and antibound states by changing the incident angle of the pump pulses corresponding to the cavity detuning. The dispersion curve for the bound state suggests that the bound state is mainly composed of a bare biexciton and is weakly coupled to the cavity photons. The dephasing time of the bound state was faster than that of a bare biexciton in a thin sample, supporting the hypothesis that the bound state is coupled to the cavity photons. On the other hand, the antibound state consists of two lower polaritons having the same spin. The clear observation of the antibound state can be qualitatively explained by the phase-space filling, which reduces the Rabi splitting.

本文言語English
論文番号035317
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
89
3
DOI
出版ステータスPublished - 2014 1月 31

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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