Time Response of One-Dimensional Photonic Crystals with a Defect Layer Made of Semiconductor Quantum Dots.

  • Tsurumachi Noriaki
    Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305–8573, Japan
  • Abe Makoto
    Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305–8573, Japan
  • Arakawa Mariko
    Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305–8573, Japan
  • Yoda Takuya
    Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305–8573, Japan
  • Hattori Toshiaki
    Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305–8573, Japan
  • Qi Jifa
    Single Quantum Dot Project, ERATO, Japan Science and Technology Corporation, 5–9–9 Tokodai, Tsukuba, Ibaraki 300–2635, Japan
  • Masumoto Yasuaki
    Single Quantum Dot Project, ERATO, Japan Science and Technology Corporation, 5–9–9 Tokodai, Tsukuba, Ibaraki 300–2635, Japan Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305–8571, Japan
  • Nakatsuka Hiroki
    Institute of Applied Physics, University of Tsukuba, Tsukuba, Ibaraki 305–8573, Japan

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抄録

The effective optical nonlinearity of semiconductor quantum dots can be enhanced in one-dimensional photonic crystal structures. We have fabricated a one-dimensional photonic crystal with a structural defect which is made of CdSe quantum dots. Besides the enhancement of degenerate four-wave mixing efficiency, a fast response of transient population grating in an order of a picosecond was obtained in the one-dimensional photonic crystal. This structure can be used as a future photonic device with high nonlinearity and fast response.

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