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5 October 2015 From nanoparticles to nanostructures for plasmonic-related applications (Presentation Recording)
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Abstract
Compared with some precise nanofabrication methods, such as EBL and FIB, holographic lithography (HL) is a convenient way to fabricate periodic structures in a large area and with superb uniformity. In this work, we developed the deep UV HL with 266 nm laser to obtain structure with a periodicity between 100 nm to 1μm, which cannot be achieved by traditional photolithography. We further developed a strategy to fabricate hybrid periodical dimmer arrays by deep UV HL and lift-off process, followed by selectively surface functionalization. Thermal treatment was employed to as an effective approach to tune the gap size, which provides an additionally adjustable factor. By coating the substrate with gold and the obtained nanostructures with gold or silver, we have obtained periodic plasmonic structure with excellent figure of merit based on refractive index change and strong and uniform SER activity. Such a hybrid periodical dimmer arrays can be used as an effective plasmonics structure, and have potential application as a platform for high-efficiency surface- and bio- analysis.
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© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bin Ren, Bowen Liu, Xu Yao, Shu Chen, Liang Zhang, Lei Wang, and Zhilin Yang "From nanoparticles to nanostructures for plasmonic-related applications (Presentation Recording)", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95471M (5 October 2015); https://doi.org/10.1117/12.2190080
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