Method of producing member with periodical structure finer than wavelength and optical element formed of the member

摘要

Method of producing a member of a periodic structure having, alternately stacked, a plurality of high refractive index layers and a plurality of low refractive index layers. The method includes alternately superimposing on each other a plurality of first sheet glasses having a high refractive index and a plurality of second sheet glasses having a low refractive index, and heating the stacked member to at least a glass transition temperature. In addition, the method includes applying a pressure to the heated stacked member perpendicularly to a principal surface of the sheet glasses or extending the heated stacked member parallel to the principal surface of the sheet glasses, thereby integrating the stacked member while reducing the thickness of each of the sheet glasses.