Fig. 3From: Optimization of selective laser-induced etching (SLE) for fabrication of 3D glass microfluidic device with multi-layer micro channels3D hollow cubes fabricated using different slice spacing. The left one used 10 μm slice and 10 μm hatch spacing. The middle one used 10 μm slice and 20 μm hatch spacing. The right one used 20 μm slice and 20 μm hatch spacingBack to article page