reconfigurable plasmofluidic lenses - cmu
TRANSCRIPT
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
Photonics: high speed, but limited in size due to the diffraction limit
modulator
source filter
waveguide
splitter
lens
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Electronics: high packing density, but limited in speed
M. L. Brongersma and V. M. Shalaev, Science 328, 440 (2010)
Plasmonics: Bridging Nanoelectronics and Photonics
Various Plasmonic Devices
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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)
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Tunable Plasmonic Devices
Combining plasmonics with microfluidics enables reconfigurable plasmofluidic devices for multiple functionalities
Nature Photonics 3, 55 (2009); Nano Lett. 9, 897 (2009); Nature Photonics, 4, 107 (2010)
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Reconfigurable Plasmofuidic Lenses
10 m
C. L. Zhao*, Y. M. Liu* et al., Nature Comm. 2305 (2013)
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Functions of the Plasmofuidic Lens
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Divergence of SPPs
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20 m
Focusing and Collimation of SPPs
C. L. Zhao*, Y. M. Liu* et al., Nature Comm. 2305 (2013)
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Non-spherical Surface Bubbles
Polystyrene bead
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Non-spherical Surface Bubbles (cont’d)