[10a-PA1-1~28] 3.1 Basic optics and frontier of optics

[10a-PA1-15] Investigation of species-selective trapping of nanomaterials using mid-infrared graphene localized electric fields

〇Daichi Akase¹, Masamitsu Yoshimura¹, Takao Fuji¹, Tetsuhiro Kudo¹ (1.TTI)

Keywords:

Optical manipulation,Graphene

This study aims to realize nanoparticle trapping using graphene plasmonic nanostructures with excellent electric-field enhancement properties in the mid-infrared region. Numerical simulations revealed that the electric field was enhanced by approximately 300 times near the graphene edges, generating sufficient optical forces to trap particles with a diameter of 100 nm. These results demonstrate the potential for wavelength-selective trapping when combined with molecular vibrational resonances. Currently, efforts are focused on establishing the fabrication process of the nanostructures and comparing their performance with that of gold nanostructures.