Evacuated periodic structures and methods of manufacturing

A method for fabricating a periodic structure, the method comprising:

• providing a holographic mixture on a base substrate;
• sandwiching the holographic mixture between the base substrate and a cover substrate, wherein the holographic mixture forms a holographic mixture layer on the base substrate;
• applying holographic recording beams to the holographic mixture layer to form a holographic polymer dispersed periodic structure comprising alternating polymer rich regions and non-reactive material rich regions;
• and
• removing the cover substrate from the holographic polymer dispersed periodic structure, wherein the cover substrate has different properties than the base substrate to allow for the cover substrate to adhere to the unexposed holographic mixture layer while capable of being removed from the formed holographic polymer dispersed periodic structure after exposure,
• wherein an adhesion promotion layer is coated on top of the base substrate which promotes adhesion between the base substrate and the holographic polymer dispersed periodic structure, and
• wherein the base substrate comprises a glass surface including hydroxyl groups and wherein a silane-based reagent bonds with the hydroxyl group and the adhesion promotion layer.