Journal
OPTICS LETTERS
Volume 43, Issue 2, Pages 334-336Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.43.000334
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- Research Council Seed Grants
- Graduate Student Summer Fellowship at the University of Dayton
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A rapid and cost-effective method for the fabrication of nanogap-rich structures is demonstrated in this Letter. The method utilizes the Marangoni convection around an optothermal surface bubble inside a liquid droplet with a nanoliter volume. The liquid droplet containing metallic nanoparticles reduces the sample consumption and confines the liquid flow. The optothermal surface bubble creates a strong convective flow that allows for the rapid deposition of the metallic nanoparticles to form nanogap-rich structures on any substrate under ambient conditions. This method will enable a broad range of applications such as biosensing, environmental analysis, and nonlinear optics. (c) 2018 Optical Society of America
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