Ultrasensitive nanosensors based on localized surface plasmon resonances: From theory to applications

Chen Wen¹, Hu Huatian², Jiang Wei¹, Xu Yuhao¹, Zhang Shunping^1,, Xu Hongxing^{1, 2,}

(color online) Universal near-exponential decay behavior of different plasmon rulers. (a)–(c) Radiating antenna plasmons in elliptical nanodisk dimer^[57] (a), nanodisk dimer^[107] (b), and NPOM^[115] (c). (d) Cavity plasmons in nanocube dimer system.^[28] Reprinted with permission from Copyright 2003, 2007, 2012 American Chemical Society, Copyright 2016 Royal Society of Chemistry.