Patent ID: 11899285
Assignee: DANMARKS TEKNISKE UNIVERSITET
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 24:
25. A method for geometrically modifying high-index dielectric structures on a support structure, comprising:
providing a support structure comprising topographical pillars or topographical holes formed on a surface of the support structure, wherein said support structure supports a first plurality of high-index dielectric structures, wherein the first plurality of high-index dielectric structures are given by a plurality of high-index dielectric structures on said topographical pillars or in said topographical holes, and a plurality of holes in a high-index dielectric film, wherein said holes correspond to said topographical features, wherein the relative permittivity at 532 nm of the first plurality of high-index dielectric structures is equal to or larger than 5; and
changing a geometry of the high-index dielectric structures located on said topographical pillars or in said topographical holes and within a second plurality of the high-index dielectric structures, wherein the second plurality of high-index dielectric structures is a sub-set of the first plurality of high-index dielectric structures, by photothermally melting at least a portion of each of the high-index dielectric structures within the second plurality of high-index dielectric structures by irradiating the second plurality of high-index dielectric structures with incident electromagnetic radiation having an incident intensity in a plane of the second plurality of high-index dielectric structures and thereby exciting resonances associated with each of the high-index dielectric structures within the second plurality of high-index dielectric structures.