Journal
NANO LETTERS
Volume 16, Issue 10, Pages 6485-6490Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.6b03029
Keywords
gold nanorods; plasmonic heating optical forces; V-shaped nanoantennas
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Funding
- DFG through Nanosystems Initiative Munich (NIM)
- DFG through Collaborative Research Center [SFB1032]
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V-shaped gold nanoantennas are the functional components of plasmonic metasurfaces, which are capable of manipulating light in unprecedented ways. Designing a meta surface requires the custom arrangement of individual antennas with controlled shape and orientation. Here, we show how highly crystalline gold nanorods in solution can be bent, one by -one, into a V-shaped geometry and printed to the surface of a solid support through a combination of plasmonic heating and optical force. Significantly, we demonstrate that both the bending angle and the orientation of each rod-antenna can be adjusted independent from each other by tuning the laser intensity and polarization. This approach is applicable for the patterning of V-shaped plasmonic antennas on almost any substrate, which holds great potentil for the fabrication of ultrathin optical components and devices.
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