Printable photonic crystals with high refractive index for applications in visible light

Nanotechnology. 2016 Mar 18;27(11):115303. doi: 10.1088/0957-4484/27/11/115303. Epub 2016 Feb 15.

Abstract

Nanoimprint lithography (NIL) of functional high-refractive index materials has proved to be a powerful candidate for the inexpensive manufacturing of high-resolution photonic devices. In this paper, we demonstrate the fabrication of printable photonic crystals (PhCs) with high refractive index working in the visible wavelengths. The PhCs are replicated on a titanium dioxide-based high-refractive index hybrid material by reverse NIL with almost zero shrinkage and high-fidelity reproducibility between mold and printed devices. The optical responses of the imprinted PhCs compare very well with those fabricated by conventional nanofabrication methods. This study opens the road for a low-cost manufacturing of PhCs and other nanophotonic devices for applications in visible light.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.