Vertical split-ring resonator based nanoplasmonic sensor

Pin Chieh Wu, Greg Sun, Wei Ting Chen, Kuang Yu Yang, Yao Wei Huang, Yi Hao Chen, Hsiang Lin Huang, Wei Lun Hsu, Hai Pang Chiang, Din Ping Tsai

研究成果: Article同行評審

67 引文 斯高帕斯(Scopus)

摘要

Split-ring resonators (SRRs) have been the subject of investigation as plasmonic sensors that operate by sensing plasmon resonance shift δλ when exposed to a medium with a refractive index change δn. However, conventional planar SRRs have their plasmon fields spread into the substrates, reducing accessible sensing volume and its sensing performance. Such a limitation can be eradicated with vertical SRRs in which the plasmon fields localized in SRR gaps are lifted off from the substrate, allowing for greatly enhanced sensitivity. Here, we demonstrate the highest sensitivity among reported SRR-based sensors in optical frequencies.

原文English
文章編號033105
期刊Applied Physics Letters
105
發行號3
DOIs
出版狀態Published - 2014 七月 21

All Science Journal Classification (ASJC) codes

  • 物理與天文學(雜項)

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