| 研究実績の概要 |
The optical response of subwavelength plasmonic structures has been used to monitor changes in their physical and chemical environments. The detection of this response in the far field is governed by the near-field properties of plasmon resonances. Although the plasmonic structures offer high performance in sensing, their micro integration on chips is difficult because of the readout in the far field. Structures that form an electrical micro-circuit and directly monitor the optical near-field variation without resorting to far-field optical detection are desirable. Here, we demonstrate an electronically readable photocapacitor based on a plasmonic nanochannel structure, which monitors the change in incident light wavelength with high spectral resolution and large impedance modulation.
|
