naa a22 4500 510816541 CHVBK 20180411083510.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9465-y doi (NATIONALLICENCE)springer-10.1007/s11468-012-9465-y A Broadband Nanosensor based on Multi-Interference of Surface Plasmon Polaritons [Elektronische Daten] [Tingting Bian, Bi-Zhen Dong, Yan Zhang] A novel broadband refractive index nanosensor based on multi-interference of surface plasmon polaritons is reported. It is composed of a metallic nanoslit flanked by periodical grooves on its two sides. Extraordinary high-throughput, high-resolution, and high-sensitivity detections can be realized by observing the shift of the resonant wavelength. The sensor covers a large range of the refractive index change due to both the narrow linewidth of the single resonant peak in the broadband spectrum and the sensitive shift of the peak position withthe refractive index change. A theoretical model is developed to well predict the optical response of the sensor. An excellent linearity between the resonant wavelength and the refractive index can be achieved. The sensitivity, which is 620nm/refractive index unit, can be further increased by tuning the period of the grooves and the high throughput; high resolution can be simultaneously achieved by adding the number of grooves. Springer Science+Business Media New York, 2012 Surface plasmon nationallicence Interference nationallicence Sensor nationallicence Extraordinary transmission nationallicence Bian Tingting Department of Physics, Harbin Institute of Technology, 150001, Harbin, People's Republic of China aut Dong Bi-Zhen Institute of Physics, Chinese Academy of Science, 100080, Beijing, People's Republic of China aut Zhang Yan Department of Physics, Capital Normal University, 100048, Beijing, People's Republic of China aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 741-744 1557-1955 8:2<741 2013 8 11468 https://doi.org/10.1007/s11468-012-9465-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9465-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bian Tingting Department of Physics, Harbin Institute of Technology, 150001, Harbin, People's Republic of China aut NATIONALLICENCE 700 1- Dong Bi-Zhen Institute of Physics, Chinese Academy of Science, 100080, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Yan Department of Physics, Capital Normal University, 100048, Beijing, People's Republic of China aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 741-744 1557-1955 8:2<741 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer