Plasmon-Exciton Interactions on Single Thermoresponsive Platforms Demonstrated by Optical Tweezers
| Autor: | Andrea Pietsch, Silvia Hormeño, Horst Weller, Beatriz H. Juárez, J. R. Arias-Gonzalez, Neus G. Bastús |
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| Rok vydání: | 2011 |
| Předmět: |
Hot Temperature
Materials science Optical Tweezers Exciton Physics::Medical Physics Physics::Optics Nanoparticle Bioengineering Microsphere Materials Testing General Materials Science Particle Size Plasmon Physics::Biological Physics business.industry Mechanical Engineering technology industry and agriculture General Chemistry Surface Plasmon Resonance Photothermal therapy Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Nanostructures Condensed Matter::Soft Condensed Matter Optical tweezers Quantum dot Optoelectronics business |
| Zdroj: | Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia instname |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl202560j |
| Popis: | Optical and hydrodynamic-size studies on single bare thermo-responsive microspheres, and microspheres covered either with Au nanoparticles, CdSe/CdS quantum dots, or a combination of both have been performed by optical tweezers. The photothermal heating of water in the focal region boosts the shrinkage of the microspheres, an effect that is intensified in the presence of Au nanoparticles. In contrast, bigger microspheres are measured when they are covered with quantum dots. Plasmon-exciton interactions are observable in the trap in the combined Au and quantum dots hybrid systems. |
| Databáze: | OpenAIRE |
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