Fig. 1. Schematic of stereolithography

Fig. 2. Schematic of selective laser sintering

Fig. 3. Fluorescence excited by (a) single-photon and (b) two-photon^[19]

Fig. 4. Schematic of two-photon polymerization

Fig. 5. Micro-bull^[11]

Fig. 6. Lens assembly on optical fiber end face^[24]

Fig. 7. (a) Whispering-gallery-mode optical microcavity and (b) surface roughness^[25]

Fig. 8. Photonic crystals whose lattice orientation varies with position^[28]

Fig. 9. Micro-needle driven by light beam. (a) Scanning electron microscopy image; (b) schematic^[30]

Fig. 10. Micro-turbine^[32]

Fig. 11. Cell scaffold^[34]

Fig. 12. NIH₃T₃ cells on nanorod array^[35]

Fig. 13. Scanning electron microscopy images of polymerized double-helix microstructures. (a) Array of double-helix microstructures; (b) top view and (c) side view of single double-helix microstructure^[46]