Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 25, Issue 5, Pages 704-710Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201403669
Keywords
metasurfaces; plasmonics; phase; polarization; radially polarized beams
Categories
Funding
- National Basic Research Program (973 Program) of China [2012CB921900, 2009CB930502]
- Chinese National Key Basic Research Special Fund [2011CB922003]
- Natural Science Foundation of China [61378006, 11304163, 11174362, 91023041, 91323304, 61390503]
- Program for New Century Excellent Talents in University [NCET-13-0294]
- Knowledge Innovation Project of CAS [KJCX2-EW-W02]
- Natural Science Foundation of Tianjin [13JCQNJC01900]
- 111 project [B07013]
- LANL LDRD program
- Center for Integrated Nanotechnologies
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Harnessing light for modern photonic applications often involves the control and manipulation of light polarization and phase. Traditional methods require a combination of multiple discrete optical components, each of which contributes to a specific functionality. Here, plasmonic metasurfaces are proposed that accomplish the simultaneous manipulation of polarization and phase of the transmitted light. Arbitrary spatial field distribution of the optical phase and polarization direction can be obtained. The multifunctional metasurfaces are validated by demonstrating a broadband near-perfect anomalous refraction with controllable linear polarization through introducing a constant phase gradient along the interface. Furthermore, the power of the proposed metasurfaces is demonstrated by generating a radially polarized beam. The new degrees of freedom of metasurfaces facilitate arbitrary manipulation of light and will profoundly affect a wide range of photonic applications.
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