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|Title:||Laser nano-fabrication of large-area plasmonic structures and surface plasmon resonance tuning by thermal effect|
|Source:||Ma, F.,Hong, M.H.,Tan, L.S. (2008-12). Laser nano-fabrication of large-area plasmonic structures and surface plasmon resonance tuning by thermal effect. Applied Physics A: Materials Science and Processing 93 (4) : 907-910. ScholarBank@NUS Repository. https://doi.org/10.1007/s00339-008-4749-y|
|Abstract:||A simple and flexible technique aimed to generate large-area periodic nano-dot array features on metal thin films by laser interference lithography (LIL) has been demonstrated. In this paper, gold nano-dot arrays with a period of ∼ 450 nm and a dot diameter of ∼100 nm on quartz substrates coated with a gold film of 50 nm thick were fabricated. Multiple enhanced transmission peaks were observed in this patterned film. In addition to the characteristic peak of the gold surface plasmon resonance around 500 nm, multiple shoulder peaks that range from 550 to 700 nm were also observed in the nano-chain array structures. These shoulder peaks disappeared after thermal annealing. It was found that the nano-dots became smaller and well-separated nano-balls under the high temperature annealing process. These nano-structures have potential applications in solar cell, nano-lithography and biosensing. © 2008 Springer-Verlag.|
|Source Title:||Applied Physics A: Materials Science and Processing|
|Appears in Collections:||Staff Publications|
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