title: Light-assisted, templated self-assembly using a photonic-crystal slab.
abstract: 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 μm 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.
authors.affiliation: Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA.
authors.forename: Eric
authors.initials: E
authors.lastname: Jaquay
authors.forename: Luis Javier
authors.initials: LJ
authors.lastname: Martínez
authors.forename: Camilo A
authors.initials: CA
authors.lastname: Mejia
authors.forename: Michelle L
authors.initials: ML
authors.lastname: Povinelli