Reconfigurable Plasmofluidic Lenses Yongmin Liu, 1,2 Chenglong Zhao,3 Yanhui Zhao,3 Nicholas Fang 4 and Tony Jun Huang3 1Department of Mechanical and Industrial Engineering, Northeastern University 2Department of Electrical and Computer Engineering, Northeastern University 3Department of Engineering Science and Mechanics, Penn State University, 4Department of Mechanical Engineering, Massachusetts Institute of Technology
Plasmonics: Bridging Nanoelectronics and Photonics
waveguide lens
source
filter
splitter
modulator
Electronics: high packing density,
but limited in speed
Photonics: high speed, but limited in
size due to the diffraction limit
M. L. Brongersma and V. M. Shalaev, Science 328, 440 (2010) 2 Various Plasmonic Devices
plasmonic source
plasmonic lens
plasmonic bend
Y. M. Liu et al., Nano Lett. 12, 4853 (2012) T. Zentgraf*, Y. M. Liu* et al., Nature Nanotech. 6, 151 (2011) 3 Tunable Plasmonic Devices
Nature Photonics 3, 55 (2009); Nano Lett. 9, 897 (2009); Nature Photonics, 4, 107 (2010)
Combining plasmonics with microfluidics enables reconfigurable
plasmofluidic devices for multiple functionalities
4 Reconfigurable Plasmofuidic Lenses
10 m
C. L. Zhao*, Y. M. Liu* et al., Nature Comm. 2305 (2013) 5 Functions of the Plasmofuidic Lens
6 Divergence of SPPs
7 Focusing and Collimation of SPPs
20 m
C. L. Zhao*, Y. M. Liu* et al., Nature Comm. 2305 (2013) 8 Non-spherical Surface Bubbles
Polystyrene bead
9 Non-spherical Surface Bubbles (cont’d)
10