Analytical Sciences

Abstract − Analytical Sciences, 32(1), 117 (2016).

Polymer-based Photonic Crystal Cavity Sensor for Optical Detection in the Visible Wavelength Region
Kenichi MAENO, Shoma AKI, Kenji SUEYOSHI, Hideaki HISAMOTO, and Tatsuro ENDO
Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuenmachi, Naka, Sakai, Osaka 599-8531, Japan
In this study, a polymer-based two-dimensional photonic crystal (PhC) cavity for visible-light-based optical-sensing applications was designed and fabricated for the first time. The PhC cavity configuration was designed to operate at 650 nm, and fabricated with a polymer (resist) on a silicon substrate using electron-beam lithography. For investigating sensing applications based on shifting of condition exhibiting a photonic bandgap (PBG), the polymer monolayer deposition (layer-by-layer method) was monitored as the light-intensity change at the cavity position. Consequently, the monolayer-level detection of polyions was achieved.