Nanorod structures for optical devices with unusual properties

Metasurfaces, the two-dimensional analog of conventional metamaterials, have drawn considerable attention in the scientific community due to their exotic electromagnetic properties. With the rapid development in metasurfaces and the unprecedented capabilities of manipulating light in a desirable manner by imparting local and space-variant abrupt phase change, the conventional concept of what constitutes an optical device continues to evolve. In this talk, we are going to share our recent work in metasurface research, including multichannel polarization-controllable superpositions of orbital angular momentum states, vector vortex beam generation with a single plasmonic metasuface, multifunctional optical devices,optical rotation, optical illusion and so on. The polarization-controllable functionality, higher resolution, broadband, and compactness render this technology very attractive for diverse applications such as photonics, quantum science, and fundamental physics.

REFERENCES
1. F. Yue, D. Wen, C. Zhang et al., Multichannel polarization-controllable superpositions of orbital angular momentum states, Advanced Materials, in press.
2. D. Wen, F. Yue, M. Ardron et al., Multifunctional metasurface lens for imaging and Fourier transform, Scientific Reports, 6, 27628 (2016).
3. F. Yue, D. Wen, J. Xin et al., Vector vortex beam generation with a single plasmonic metasuface, ACS Photonics, 3, 1558 (2016).