![]() Pockrand I (1974) Reflection of light from periodically corrugated silver films near the plasma frequency. Īkimov Y, Pam ME, Sun S (2017) Kretschmann-Raether configuration: revision of the theory of resonant interaction. Kretschmann E, Ferrell TL, Ashley JC (1979) Splitting of the dispersion relation of surface plasmons on a rough surface. Berlin, Heidelberg: Springer Berlin Heidelberg Raether H (1988) Surface plasmons on smooth and rough surfaces and on gratings. Otto A (1968) Excitation of nonradiative surface plasma waves in silver by the method of frustrated total reflection. Maier SA (2007) Plasmonics: fundamentals and applications. Jain PK, El-Sayed MA (2010) Plasmonic coupling in noble metal nanostructures. Įbbesen TW, Genet C, Bozhevolnyi SI (2008) Surface-plasmon circuitry. Keilmann F (1999) Surface-polariton propagation for scanning near-field optical microscopy application. Pitarke JM, Silkin VM, Chulkov EV, Echenique PM (2006) Theory of surface plasmons and surface-plasmon polaritons. ![]() Zayats AV, Smolyaninov II, Maradudin AA (2005) Nano-optics of surface plasmon polaritons. The physical mechanism of this phenomenon is explained through an analogy of the surface wave on grating to slow wave in slow-wave-structure of vacuum electronic devices. Synthesizing the simulation results, we found that the effective plasma frequency of gold grating and dispersion relations of SPPs on the surface of grating change with the propagation trajectory of SPPs. The effective plasma frequency of metal grating is proposed to replace the plasma frequency of the gold film, which shows that the groove depth is negatively relevant to effective plasma frequency of the gold grating and the frequency of SPPs while the groove width does not affect them. The valley points of the minimum reflection spectrums are close in gratings with different width while quite different in gratings with different groove depths, which means that the depth of the grooves in grating can regulate the maximum transmission frequency of light. The minimum reflection spectrum is obtained through connecting the minimum reflection coefficients corresponding to different incident angles. With increase of frequency, the strength of SPPs and the light-SPP conversion efficiency decrease, and the conversion efficiency of grating is lower than that of the smooth gold film. In this paper, the transmission characteristics of light and field properties of SPPs on the surface of different shapes of gratings in Kretschmann–Raether configurations are studied. ![]() The surface plasmon polaritons (SPPs) have been demonstrated with significant advantages in nano-photonic devices due to their ability to control and manipulate light. ![]()
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