[11p-E310-1~11] 3.11 Nanoscale optical science and near-field optics

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[11p-E310-10] Design of Spectrally Selective Metalenses Based on Metallic Nanohole Arrays

〇Masashi Miyata¹, Hiroki Shimizu¹, Toshikazu Hashimoto¹ (1.Device Technology Labs., NTT, Inc.)

Keywords:

optical metasurface,plasmonics,extraordinary optical transmission

A spectrally selective metalens integrating wavelength filtering and focusing functions is proposed for compact and highly integrated spectral imaging systems. The proposed structure consists of a binary-amplitude Fresnel zone plate formed by metallic nanohole arrays exhibiting extraordinary optical transmission (EOT). Numerical simulations demonstrate wavelength-selective focusing characteristics, confirming the feasibility of the proposed metalens.