[16a-P07-1~24] 3.11 Nanoscale optical science and near-field optics

[16a-P07-13] Fabrication and evaluation of high-Q silica microcavities decorated with CVD-grown WS₂

〇Hidetoshi Kanzawa¹, Ryo Sugano¹, Yutaro Senda², Yasuhiko Hayashi², Hiroo Suzuki², Shun Fujii¹ (1.Keio Univ., 2.Okayama Univ.)

Keywords:

microcavity,2D material

We transferred CVD-grown monolayer WS₂ onto a high-Q silica microspherical resonator. A redshift of the PL spectrum from WS₂ was observed, suggesting that the resonator's optical field affects the bandgap of WS₂. The temperature dependence of the PL spectrum was measured and compared with theoretical calculations to investigate the mechanism of the redshift.