期刊
NANO LETTERS
卷 13, 期 5, 页码 2290-2294出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl400918x
关键词
Optical trapping; self-assembly; photonic crystal; nanomanipulation
类别
资金
- Army Research Office PECASE Award [56801-MS-PCS]
We experimentally demonstrate the technique of light-assisted, templated self-assembly (LATS). We excite a guided-resonance mode of a photonic-crystal slab with 1.55 mu m laser light to create an array of optical traps. We demonstrate assembly of a square lattice of 520 rim diameter polystyrene particles spaced by 860 nm. Our results demonstrate how LATS can be used to fabricate reconfigurable structures with symmetries different from traditional colloidal self-assembly, which is limited by free energetic constraints.
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