[20p-E207-1~15] 3.11 Photonic structures and phenomena

△ [20p-E207-5] Circularly Polarized Cavity Mode in a Semiconductor-Based Chiral Photonic Crystal Fabricated by a Micro-Manipulation Method using an Optical Microscope

〇(M2)Yuzou Kinuta¹, Shun Takahashi¹, Kenichi Yamashita¹, Jun Tatebayashi², Satoshi Iwamoto^2,3, Yasuhiko Arakawa² (1.Kyoto Inst. of Tech., 2.NanoQuine, Univ. of Tokyo, 3.RCAST/IIS, Univ. of Tokyo)

Keywords:Photonic crystal cavity, Chirality, Circular polarization

We experimentally demonstrated a cavity mode in a GaAs-based chiral photonic crystal having a planar defect. The three-dimensional structure was fabricated by a micro-manipulation technique under optical microscope observation. Photoluminescence measurement at low temperature for InAs quantum dots embedded in the photonic crystal showed a polarization bandgap for left-handed circularly polarized light. In this bandgap, a cavity mode peak appeared and its cavity Q-factor was about 390.