Light-Assisted, Templated Self-Assembly Using a Photonic-Crystal Slab
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- 作者：Eric Jaquay ; Luis Javier Mart铆nez ; Camilo A. Mejia ; Michelle L. Povinelli
- 刊名：Nano Letters
- 出版年：2013
- 出版时间：May 8, 2013
- 年：2013
- 卷：13
- 期：5
- 页码：2290-2294
- 全文大小：284K
- 年卷期：v.13,no.5(May 8, 2013)
- ISSN：1530-6992
文摘
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 渭m laser light to create an array of optical traps. We demonstrate assembly of a square lattice of 520 nm 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.