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Babynina, Anastasia; Fedoruk, Michael; Kühler, Paul; Meledin, Alexander; Döblinger, Markus and Lohmüller, Theobald (2016): Bending Gold Nanorods with Light. In: Nano Letters, Vol. 16, No. 10: pp. 6485-6490

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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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