Long-range surface plasmons for high-resolution surface plasmon resonance sensors

Broadly wavelength tunable bandpass filters based on long-range surface plasmon polaritons

“…However, all these approaches increase optical system complexity and size. [12,[20][21][22][23][24][25]. However, the possibility of using LR SPP modes to create very-broadly-tunable plasmonic devices that we propose here has been unnoticed and unexplored before.…”

Optimized Dielectric Film for Maximum Sensitivity of Nearly Guided‐Wave Surface Plasmon Resonance Sensor

“…In last 2 decades, a few methods were proposed to improve the sensitivity of SPR sensor, for example, using long-range surface plasmons, [7,8] employing graphenebased multilayer structure, [9][10][11][12] and adding grating on top of the metal layer, [13] In 2008 and 2009, great progress was made for sensitivity enhancement by Lahav et al [14,15] They proposed a novel way for sensitivity improvement by using a nearly guided-wave SPR (NGWSPR) sensor, which is similar to the Kretschmann configuration with an addition of a thin dielectric film between the metal layer and the sample (as shown in Figure 1). Nearly four times angular sensitivity has been achieved by adding a 10 nm Si film on top of a conventional SPR sensor.…”

Resolution enhancement of optical surface plasmon resonance sensor using metamaterial

“…Traditionally, SPR is measured using the Kretschmann configuration, with a prism and a thin highly reflecting metal layer deposited upon the prism base [5]. Various configurations in a Kretschmann type device structure have been proposed and explored yet, mainly by designing the layer stack on the hypotenuse face of a prism, which include long range SPR sensors [6,7], Au-Ag metals film SPR sensor i.e. conventional SPR [2,8], waveguide coupled plasmon-waveguide SPR sensor [9], etc.…”