Diffractive optical devices produced by light-assisted trapping of nanoparticles
Entity
UAM. Departamento de Física de MaterialesPublisher
Optical Society of AmericaDate
2016-01-15Citation
10.1364/OL.41.000432
Optics Letters 41.2 (2016): 432-435
ISSN
0146-9592 (print); 1539-4794 (online)DOI
10.1364/OL.41.000432Funded by
This work was supported by Spanish projects MAT2011- 28379-C03 and MAT2014-57704-C03Project
Gobierno de España. MAT2011- 28379-C03; Gobierno de España. MAT2014-57704-C03Editor's Version
http://dx.doi.org/10.1364/OL.41.000432Subjects
Microstructure fabrication; Diffraction gratings; Diffractive lenses; Diffractive optics; Photorefractive materials; Optical tweezers or optical manipulation; FísicaNote
© 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 prohibitedRights
© 2015 Optical Society of AmericaAbstract
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
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Google Scholar:Muñoz-Martínez, Juan F.
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Jubera, M.
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Matarrubia, J.
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García Cabañes, Ángel
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Agulló López, Fernando
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Carrascosa Rico, Mercedes
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