Three-Dimensional Photonic ``Molecules'' from Sequentially Attached Polymer-Blend Microparticles
Abstract
We report the observation of 3D linear or branched chains of polymer-blend microspheres generated from liquid droplets of solution where the modified surface structure of the polymer composite results in highly robust interparticle bonds. Using a linear quadrupole to precisely position particles in space, we are able to take advantage of this novel material property to actively assemble particles in programmable three-dimensional architectures. The robust interlocking nature of interparticle linkage gives rise to strongly coupled morphology-dependent resonances in bisphere and trisphere systems, suggesting the possibility of three-dimensional photonic ``molecules'' and microscale optical manipulation applications.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 2001
- DOI:
- 10.1103/PhysRevLett.88.015508
- Bibcode:
- 2001PhRvL..88a5508B