纳米棒
等离子体子
材料科学
折射率
电介质
表面等离子体子
光电子学
光学
多波段设备
吸收(声学)
格子(音乐)
纳米技术
物理
电信
计算机科学
声学
天线(收音机)
复合材料
作者
Leilei Shi,Qian Tang,Zhengqi Liu,Ye Liu,Yuyin Li,Guiqiang Liu,Lei Li
出处
期刊:Journal of The Optical Society of America B-optical Physics
[The Optical Society]
日期:2019-09-13
卷期号:36 (10): 2750-2750
被引量:19
标识
DOI:10.1364/josab.36.002750
摘要
We theoretically present a tunable dual-band perfect absorber in the visible and near-infrared regions for sensing applications. The absorber consists of a periodic metal-dielectric-metal shell-core nanorod array and a thick metal film separated by a periodic dielectric nanorod array. Two narrow perfect absorption bands (98.2% and 99.7%) are achieved due to the synergy of localized surface plasmons (LSPs), propagating surface plasmons (PSPs) and lattice resonances. The two narrow bands both are sensitive to the refractive index change and the maximum sensitivity is 783.705 nm/RIU (RIU is the refractive index unit). These enable the structure to have great potential in the fields of perfect absorbers, plasmonic sensors, and filters.
科研通智能强力驱动
Strongly Powered by AbleSci AI