High-throughput in-volume processing in glass with isotropic spatial resolutions in three dimensions

Abstract

We report on the fabrication of three dimensional (3D) microstructures in glass with isotropic spatial resolutions. To achieve high throughput fabrication, we expand the focal spot size with a low-numerical-aperture lens, which naturally results in a degraded axial resolution. We solve the problem with simultaneous spatial temporal focusing which leads to an isotropic laser-affected volume with a spatial resolution of similar to 100 mu m. (C) 2016 Optical Society of America