[10a-E201-1~11] 3.11 Nanoscale optical science and near-field optics

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10a-E201-3] Near-field optical characterization of organic spiral nanostructure

〇(DC)Ken Morita¹, Hiromi Okamoto², Kohei Imura¹ (1.Waseda Univ., 2.Inst. for Mol. Sci.)

Keywords:

Near-field optical microscopy,Optical chirality,Polycyclic aromatic hydrocarbons

In this study, we performed their near-field optical characterization of the organic chiral nanostructures fabricated with the oligomers of perylene. The oligomers were formed by electron beam irradiation on a perylene single crystal, and spiral nanostructures were fabricated by scanning the sample stage. The nanostructures show intense photoluminescence in the 600 – 900 nm range upon excitation at 532 nm. Electromagnetic simulations indicate that the chiroptical response is enhanced around the nanostructure. Currently, we are evaluating optical chirality field by detecting photoluminescence from the sample.