Open AccessDielectric-Grating-Coupled Surface Plasmon Resonance From the Back Side of the Metal Film for Ultrasensitive Sensing
Author(s) -
Shaohua Pi,
Xie Zeng,
Nan Zhang,
Dengxin Ji,
Borui Chen,
Haomin Song,
Alec Cheney,
Yun Xu,
Suhua Jiang,
Dalin Sun,
Yun Song,
Qiaoqiang Gan
Publication year - 2015
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2015.2509870
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
We propose a dielectric grating that can launch surface plasmon resonance (SPR) modes efficiently on the other side of flat metal films, which is similar to the conventional prism coupling mechanism. Importantly, this structure can excite SPR under the normal incident light, which is particularly suitable for the integration with optical fiber tips. By launching the SPR mode near the wavelength of 1.55 $\mu\text{m}$