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Título: | All-Nanoparticle Based Optical Resonators for Detection of Gases and Liquids |
Autor: | Sánchez-Sobrado, Olalla CSIC ORCID; Calvo, Mauricio E. CSIC ORCID ; Núñez, Nuria O. CSIC ORCID; Ocaña, Manuel CSIC ORCID; Lozano, Gabriel CSIC ORCID; Míguez, Hernán CSIC ORCID | Fecha de publicación: | 2010 | Editor: | The International Society for Optics and Photonics | Citación: | Proceedings of SPIE - The International Society for Optical Engineering (2010) | Resumen: | Nanoparticle based one dimensional photonic crystals are porous optical lattices that display environmentally responsive optical properties. Herein we will demonstrate that they can be used to build optical micro-resonators in which this response is further enhanced. Its versatility is proved by showing their capacity to host different types of light emitters, with irregular shapes, like rare earths based nanophosphors. The effect of the photonic nanostructure on the emission spectra of embedded optically active nanoparticles is studied. Narrow luminescence bands, typical of rare-earth ions, can be enhanced or reduced in selected and tuneable wavelength ranges, by precise control of the spectral features of cavity modes. We will provide experimental evidence of the strong changes of the optical response caused by environmental changes, which allows us to propose these structures as base materials for the optical detection of liquids and gases. | URI: | http://hdl.handle.net/10261/83824 | DOI: | 10.1117/12.853659 | Identificadores: | doi: 10.1117/12.853659 issn: 0277-786X |
Aparece en las colecciones: | (ICMS) Artículos |
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