[15a-P5-1~14] 3.12 Nanoscale optical science and near-field optics

[15a-P5-3] Active controls of violet-excited plasmon on micro-actuated diaphragms

〇Nobuhiro Chizawa¹, Satou Nanami², Nisiyama Hiroaki¹ (1.Gad. Yamagata Univ, 2.Yamagata Univ)

Keywords:Plasmon, Micro-actuated diaphragms, Active controls

Surface plasmonic devices are useful for highly sensitive detection because of strong energy confinement effects. Although there are some reports on active plasmonics, based on nano-gap controls, such approach cannot be applied to short wavelength excitation. We successfully tune optical properties of violet-wavelength excited plasmon using microdiaphragms. In this presentation, we show a novel tuning mechanism of surface plasmon and device properties.