Table 3.

Comparison of 2PP and Diamond-Cut Techniques for Mapping Mirror Fabrication

	Two-Photon Polymerization	Diamond Machining
Fabrication time	78 h (can be further reduced by using smaller pixels)	2–3 weeks
Uniformity	0.5%	Up to 15%
Spatial density	2–3 μm	70–80 μm
Precision of angles	2.03% on average	7.3% on average
Calibration difficulty	5 images without any scanning stages	20–2000 images with high-precision scanning stages
Design flexibility	Both tilt angle and pixel width adjustment	Only tilt angle adjustment in a limited range