期刊
ADVANCED MATERIALS
卷 28, 期 13, 页码 2533-+出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201504532
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资金
- National Research Foundation, Prime Minister's Office, Singapore under its Competitive Research Program (CRP Award) [NRF-CRP10-2012-04]
- Singapore National Research Foundation under the 10 Tb/in2 density storage project under CRP Award [NRF-CRP4-2008-06]
- National University of Singapore [R-263-000-A45-112]
- Agency for Science, Technology and Research (A*STAR) [0921540099]
- A*STAR-MINDEF JFP [102 1740172]
- EPSRC [EP/J018473/1]
- Leverhulme Trust [RPG-2012-674]
- Royal Society
- Engineering and Physical Sciences Research Council [EP/J018473/1] Funding Source: researchfish
- EPSRC [EP/J018473/1] Funding Source: UKRI
A multifocus optical vortex metalens, with enhanced signal-to-noise ratio, is presented, which focuses three longitudinal vortices with distinct topological charges at different focal planes. The design largely extends the flexibility of tuning the number of vortices and their focal positions for circularly polarized light in a compact device, which provides the convenience for the nanomanipulation of optical vortices.
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