Patent ID: 8329049

Claim:
A method of fabricating a nanostructure, comprising: prestructuring a substrate to form a nano-relief on said substrate, said nanorelief having flanks extending from a bottom of said substrate and a top face extending from said flanks; directionally depositing on the prestructured substrate a single-layer or multilayer coating that is sufficiently strong to form said nanostructure, said directionally depositing includes having a deposited flux arrive at grazing incidence to said flanks and substantially perpendicular to said bottom so that the deposited flux on the substrate is not conformed but discontinuous on said flanks; adding to at least a portion of a surface of said prestructured substrate, or to said coating, a separation layer for total or partial separation of said coating from said prestructured substrate by mechanical, thermomechanical, or vibratory external action; and exerting said external action on the prestructured substrate and the coating, the external action being exerted by a stress on the prestructured substrate and/or said coating to selectively recover from said nanorelief a top portion and/or a recessed portion of said coating respectively corresponding to said top face and/or said bottom of said prestructured substrate by separating the top portion and/or said recessed portion from the remainder of said coating deposited on said prestructured substrate so that said top portion and/or said recessed portion recovered in this way constitute(s) some or all of said nanostructure.