Nanostructured gradient index microoptics

Nanostructured gradient index (nGRIN) elements are a new class of planar-surface micro-optical components which transform optical wavefront by discrete, subwavelength changes in the refractive index perpendicular to the optical axis. We have developed a series of various nanostructured micro-optical components with various functionalities using modified stack-and -draw method. All nanostructured components are developed with two types of thermally matched soft glasses with refractive index difference of 0.04 - 0.1. In this paper we present experimental and modelling results for various type of microcomponets, including spherical, elliptical and axicon lenses.