Diffractive optical devices produced by light-assisted trapping of nanoparticles
| Autor: | Angel García-Cabañes, J. Matarrubia, Mercedes Carrascosa, M. Jubera, Juan F. Muñoz-Martínez, Fernando Agulló-López |
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| Přispěvatelé: | UAM. Departamento de Física de Materiales |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Diffraction
Fresnel zone Materials science Photorefractive materials Diffractive lenses Nanoparticle 02 engineering and technology Diffraction efficiency 01 natural sciences 010309 optics Crystal Optics 0103 physical sciences Perpendicular Diffraction grating Optical tweezers or optical manipulation Diffractive optics business.industry Física 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Microstructure fabrication Diffraction gratings Particle 0210 nano-technology business |
| Zdroj: | Biblos-e Archivo. Repositorio Institucional de la UAM instname |
| DOI: | 10.1364/ol.41.000432 |
| Popis: | © 2015 Optical Society of America.]. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited One and two-dimensional diffractive optical devices have been fabricated by light assisted trapping and patterning of nanoparticles. The method is based on the dielectrophoretic forces appearing in the vicinity of a photovoltaic crystal, such as Fe:LiNbO3, during or after illumination. By illumination with the appropriate light distribution, the nanoparticles are organized along patterns designed at will. One- and two-dimensional diffractive components have been achieved on X- and Z-cut Fe:LiNbO3 crystals, with their polar axes parallel and perpendicular to the crystal surface, respectively. Diffraction gratings with periods down to around a few micrometers have been produced using metal (Al, Ag) nanoparticles with radii in the range of 70-100 nm. Moreover, several 2D devices, such as Fresnel zone plates, have been also produced showing the potential of the method. The diffractive particle patterns remain stable when light is removed. A method to transfer the diffractive patterns to other non-photovoltaic substrates, such as silica glass, has been also reported This work was supported by Spanish projects MAT2011- 28379-C03 and MAT2014-57704-C03 |
| Databáze: | OpenAIRE |
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