[17a-A305-1~9] 3.11 Nanoscale optical science and near-field optics (formerly 3.12)

[17a-A305-2] Top and Bottom Double Fiber Probe Optical Near-Field Microscopy of
Internal Structure of Nano-photoisomerization Pathway in Photochromic Crystals

〇Yuji Arakawa¹, Kazuharu Uchiyama¹, Yuki Hashimoto², Kingo Uchida², Tsuyoshi Fukaminato³, Shinichiro Nakamura⁴, Makoto Naruse⁵, Hirokazu Hori¹ (1.Univ. of Yamanashi, 2.Ryukoku Univ., 3.Kumamoto Univ., 4.Kumamoto Univ, 5.The Univ. of Tokyo)

Keywords:Photochromism, Scanning Near-field Optical Microscope

Toward the realization of functional devices based on light-matter interactions, we are studying nano-photoisomerization in diarylethene single crystals, which reversibly isomerize between open and closed rings upon light irradiation. In this study, the transparent pathway structure inside the crystal was estimated three-dimensionally by multilayer measurement by changing the distance between the sample surface and the probe. In this presentation, we report on the measurement method and the estimation method of the internal structure.