Role of particle anisotropy and deposition method on the patterning of nano-objects by the photovoltaic effect in LiNbO3

Autor: Mercedes Carrascosa, J. Villarroel, Héctor Burgos, Angel García-Cabañes, Fernando Agulló-López, M. Jubera
Rok vydání: 2013
Předmět:
Zdroj: Optical Materials. 35:1700-1705
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2013.04.035
Popis: Novel experiments and data analysis on the emergent use of evanescent photovoltaic fields generated by visible illumination of Fe:LiNbO 3 for trapping, patterning and massif manipulation of micro-and nano-objects are reported. The data include experiments on a variety of particles (dielectric and conductive) and illumination geometries. The data reveal the key role of several physical parameters such as the modulation m of the exciting light pattern, particle anisotropy and deposition method. The observed dependences are satisfactorily described within a theoretical framework describing the dielectrophoretic forces acting on the substrate surface.
Databáze: OpenAIRE