銀レリーフ型表面プラズモンホログラフィにおける像再生特性

抄録

Image reconstruction characteristics of the surface plasmon (SP) holography, which is composed of silver film supporting the SP propagation and hologram layer diffracting the SP wave, are investigated. From the viewpoint of the dependence on the SP hologram structures, a silver relief deposited on a dielectric hologram and a dielectric hologram placed on flat silver film are experimentally demonstrated and compared. The reconstructed image by silver relief hologram shows extremely high diffraction efficiency under He-Ne laser excitation even though the modulation depth of hologram is quite shallow. In white light reconstruction, it is found that the appropriate design of the structure makes it possible to control the color selectivity and also realize efficient white color reconstruction. The differences in the reconstruction properties are discussed in terms of the structural aspect of SP holography and SP excitation mechanisms.