Micro Grating Deposition on Non‐Planar Surfaces by Polymer‐Assisted Transfer Printing

Abstract

By spin‐coating a few hundred of nanometer thick poly(methyl methacrylate) (PMMA) film on a micron or a sub‐micron scale structure, the structure can be transferred on an arbitrary substrate. More precisely, by using a thin PMMA support layer and releasing the structure from the transient substrate into water, the PMMA with the structure can be collected on a desired substrate. Here, this technique is demonstrated to be suitable for transferring metallic binary grating and few‐layer Bragg gratings from flat substrates onto 3D‐printed convex lenses. Moreover, the thin PMMA film is sufficiently strong to support centimeter size free‐standing areas. This enables fabrication of 1.5 μm thick, free‐standing structure of a Bragg‐grating with PMMA. Thus, the presented technique provides a powerful tool for transfer printing of micron scale structures.

Nanocarbon Photonics and Optoelectronics

“…The contributions (in total amount of 13) of this Special Section are presented by a Feature Article and twelve Original Papers devoted to the problem of electrostatic confinement of massless Dirac particles, non‐linear optical effects in non‐carbon nano‐structured matters such as topological insulator Bi 2 Se x and Ag/Pd nanocomposite films, particularities in field electron emission from micro‐tips decorated by nanoparticles, usage of graphene transfer technique for printing of micro‐ and nanoscale optical components on convex lenses, preparation and optical characterization of carbon nanotubes, different aspects related to graphene and graphenic materials formation, application of graphene materials for THz components, and creation of the color centers in diamond micro‐needle crystallites …”