Replicative fabrication of diffractive structure from self-assembled particles onto a glass substrate using corona-charging treatment

Abstract

We have succeeded in the first fabrication of a diffractive structure replicated onto a glass substrate using a template of self-assembled polystyrene particles via corona-charging treatment. A hexagonal close-packed structure of selfassembled particles was used as the template in the structural replication. As a result, a sixfold symmetric diffraction pattern was generated from the glass substrate, on/in which the diffractive structure was replicatively fabricated. The dependence of the diffraction efficiency on processing time of corona-charging treatment was examined. It was found that the diffraction efficiency increased with treatment time up to 2 h. The observed first-order diffraction efficiency was 2.4 × 10⁻³%. In contrast, the diffraction efficiency decreased after 2 h treatment under our current experimental conditions. This trend of diffraction efficiency was discussed on the basis of structural changes of the polystyrene template.