Carregant...
Tipus de document
Treball de fi de grauData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/180994
Characterization of optomechanical cavities
Títol de la revista
Autors
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
The coupling between optical and mechanical waves has been a growing study field for the last few years. Optomechanical crystals (OMCs), also known as Phoxonic crystals, are periodical nanostructures that can present bandgaps for both photons and phonons. By injecting a slight defect into the OMCs one can place particular modes inside the gaps enabling light and motion to effectively localize in the same volume, thus enhancing the optomechanical interaction. The latter allows the optical transduction of nanomechanical motion with near quantum-limited sensitivity, which drives us to applications such as signal processing and high-speed sensing systems. This study aims to experimentally characterize a set of optomechanical devices and point out their effectiveness in terms of their optical and mechanical quality factor (Q factor). In this regard, I have found that the best Q factor values appear as a compromise between the geometrical depth of the defect and the fabrication limitations, and I also noticed a significant difference between mechanical and optical losses due to their main dissipating mechanisms, leading to lower mechanical Q factors
Descripció
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutor: Daniel Navarro Urrios
Matèries (anglès)
Citació
Col·leccions
Citació
VITRIÀ MONTERO, Elisenda. Characterization of optomechanical cavities. [consulta: 22 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/180994]