droplet microfluidics

Multilevel Spherical Photonic Crystals with Controllable Structures and Structure‐Enhanced Functionalities
J. Wang, H. Le-The, L. Shui, J. G. Bomer, M. Jin, G. Zhou, P. Mulvaney, P. W. H. Pinkse, A. Van den Berg, L. I. Segerink, and J. C. T. Eijkel
Adv. Optical Mater. 2020, 1902164: 1-11 (2020)