LiNbO3: A photovoltaic substrate for massive parallel manipulation and patterning of nano-objects
| Autor: | Angel García-Cabañes, J. B. Ramiro, Fernando Agulló-López, Mercedes Carrascosa, M. Jubera |
|---|---|
| Přispěvatelé: | UAM. Departamento de Física de Materiales |
| Rok vydání: | 2015 |
| Předmět: |
Electric fields
Materials science Micro and nano-particle Spatial light modulators Experimental techniques Holography General Physics and Astronomy 02 engineering and technology Dielectric Photovoltaic effect 7. Clean energy 01 natural sciences Aeronáutica law.invention 010309 optics Parallel manipulations Optics law Evanescent fields 0103 physical sciences Tweezers Illumination patterns Materiales Spatial light modulator Substrates Substrates Dielectrophoretic forces business.industry Poling Física Photorefractive effect 021001 nanoscience & nanotechnology Ferroelectricity Light modulators Nanoparticles Photoreactivity Optoelectronics Particle depositions Pyroelectric response 0210 nano-technology business |
| Zdroj: | Applied physics reviews, ISSN 1931-9401, 2015-10-20, Vol. 2, No. 4 Archivo Digital UPM Universidad Politécnica de Madrid Biblos-e Archivo. Repositorio Institucional de la UAM instname |
| ISSN: | 1931-9401 |
| DOI: | 10.1063/1.4929374 |
| Popis: | Reprinted with permission from [Carrascosa, M, Applied Physics Reviews, vol. 2, art. number 040605, 2015 ]. Copyright [2015], American Institute of Physics The application of evanescent photovoltaic (PV) fields, generated by visible illumination of Fe:LiNbO3 substrates, for parallel massive trapping and manipulation of micro- and nano-objects is critically reviewed. The technique has been often referred to as photovoltaic or photorefractive tweezers. The main advantage of the new method is that the involved electrophoretic and/or dielectrophoretic forces do not require any electrodes and large scale manipulation of nano-objects can be easily achieved using the patterning capabilities of light. The paper describes the experimental techniques for particle trapping and the main reported experimental results obtained with a variety of micro- and nano-particles (dielectric and conductive) and different illumination configurations (single beam, holographic geometry, and spatial light modulator projection). The report also pays attention to the physical basis of the method, namely, the coupling of the evanescent photorefractive fields to the dielectric response of the nano-particles. The role of a number of physical parameters such as the contrast and spatial periodicities of the illumination pattern or the particle deposition method is discussed. Moreover, the main properties of the obtained particle patterns in relation to potential applications are summarized, and first demonstrations reviewed. Finally, the PV method is discussed in comparison to other patterning strategies, such as those based on the pyroelectric response and the electric fields associated to domain poling of ferroelectric materials This work was supported by Project Nos. MAT2011- 28379-C03 and MAT2014-57704-C03 |
| Databáze: | OpenAIRE |
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