Infrared surface plasmons on heavily doped silicon

摘要: wavelengths, respectively. The permittivity spectra were used to calculate SPP mode heights above the silicon surface and propagation lengths. Reasonable merit criteria applied these quantities suggest that only heaviest doped material has sensor potential, then mainly within wavelength range 6 10 lm. Photon-to-plasmon coupling resonances, a necessary condition for sensing, demonstrated near lm this material. shape position of resonances agree well with simple analytic calculations based on theory Hessel Oliner (1965). V C 2011 American Institute Physics. [doi:10.1063/1.3672738]