[17p-WL2_201-1~16] 3.11 Nanoscale optical science and near-field optics

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17p-WL2_201-7] Chiroptical Characterization of Organic Spiral Nanostructures

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

Keywords:

nanostructure,Chiroptical response,Organic compounds

Herein, we fabricated organic chiral nanostructures with perylene crystals by electron beam (e-beam) irradiation and characterized their optical properties. The products by the e-beam irradiation were perylene oligomers which are unresolved by conventional solvent. Hence, the nanostructures can be fabricated on the irradiated area by developing with the suitable solvent. We fabricated the spiral nanostructures using this technique. The nanostructure exhibits strong extinction 400 – 700 nm. Electromagnetic simulations indicate that the enhancement of the chiroptical response by the nanostructure exceeds a factor of two compared to that of the incident circularly polarized light.