Detection of graphene motion through light-matter interactions
[ANGLÈS] In this thesis, we study both experimentally and theoretically the optical detection of the motion of graphene membranes based on fluorescence quenching of the emitters close to graphene. Fluorescence quenching occurs due to distance-dependent resonant energy transfer from the emitter dipol...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2099.1/16163 |
| Acceso en línea: | https://hdl.handle.net/2099.1/16163 |
| Access Level: | acceso abierto |
| Palabra clave: | Quantum optics Nanostructures Optoelectronics Quantum dots micromechanics nanoestructuras micromecànica Òptica quàntica Nanoestructures Optoelectrònica Punts quàntics Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| Sumario: | [ANGLÈS] In this thesis, we study both experimentally and theoretically the optical detection of the motion of graphene membranes based on fluorescence quenching of the emitters close to graphene. Fluorescence quenching occurs due to distance-dependent resonant energy transfer from the emitter dipoles to electron-hole dipoles in the graphene, and may be detected by lifetime measurement of the emitters. Nanoresonators consisting of graphene suspended over hole and trench structures coated with quantum dots are fabricated and their surface and emission properties characterised. The membranes are actuated electrostatically, and their movement is detected both mechanically by atomic force microscopy and also by lifetime measurements of the quantum dots. |
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