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Characterization of sintered fused silica glass. a) Microscopy image of green part and sintered fused silica glass showing an isotropic shrinkage of 26.7% (scale bar: 485 µm). b) Microscopy image of a printed fused silica microlens array (scale bar: 100 µm). c) Confocal microscopy image of a single lens from the microlens array shown in (b). Roughness was measured within the highlighted area (dotted lines).
