摘要
Surface plasmons are quanta of collective oscillations of free electrons at metal-insulator interface, usually excited by pho-tons. Since it was first proposed in 1950s by Ritchie, new interests have been aroused due to recent advances in synthe-sis and fabrication of various nanostructures.
Surface plasmons are quanta of collective oscillations of free electrons at metal-insulator interface, usually excited by photons. Since it was first proposed in 1950s by Ritchie, new interests have been aroused due to recent advances in synthesis and fabrication of various nanostructures. Novel optical properties were frequently reported on these materials, with great potential applications in physics, chemistry, biology and cancer therapy, etc. Some of them have even exhibited enormous economic values.
