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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
A one-dimensional optomechanical crystal with a complete phononic band gap
Nature Communications, Volume 5, Article 4452, Year 2014
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Description
Recent years have witnessed the boom of cavity optomechanics, which exploits the confinement and coupling of optical and mechanical waves at the nanoscale. Among their physical implementations, optomechanical (OM) crystals built on semiconductor slabs enable the integration and manipulation of multiple OM elements in a single chip and provide gigahertz phonons suitable for coherent phonon manipulation. Different demonstrations of coupling of infrared photons and gigahertz phonons in cavities created by inserting defects on OM crystals have been performed. However, the considered structures do not show a complete phononic bandgap, which should enable longer lifetimes, as acoustic leakage is minimized. Here we demonstrate the excitation of acoustic modes in a one-dimensional OM crystal properly designed to display a full phononic bandgap for acoustic modes at 4 GHz. The modes inside the complete bandgap are designed to have high-mechanical Q-factors, limit clamping losses and be invariant to fabrication imperfections. © 2014 Macmillan Publishers Limited.
Authors & Co-Authors
Gomis-Bresco, Jordi
Spain, Barcelona
Institut Català de Nanociència I Nanotecnologia
Navarro-Urrios, Daniel
Spain, Barcelona
Institut Català de Nanociència I Nanotecnologia
Italy, Pisa
Scuola Normale Superiore Di Pisa
Oudich, Mourad
France, Villeneuve-d'ascq
Institut D'electronique de Microélectronique et de Nanotechnologie Iemn
France, Nancy
Institut Jean Lamour
El-Jallal, Said
France, Villeneuve-d'ascq
Institut D'electronique de Microélectronique et de Nanotechnologie Iemn
Morocco, Meknes
Université Moulay Ismaïl
Griol, Amadeu
Spain, Valencia
Universitat Politècnica de València
Puerto, D.
Spain, Valencia
Universitat Politècnica de València
France, Paris
Cnrs Centre National de la Recherche Scientifique
Chavez-Angel, E.
Spain, Barcelona
Institut Català de Nanociència I Nanotecnologia
Spain, Cerdanyola Del Valles
Universitat Autònoma de Barcelona
Pennec, Yan
France, Villeneuve-d'ascq
Institut D'electronique de Microélectronique et de Nanotechnologie Iemn
Djafari-Rouhani, Bahram
France, Villeneuve-d'ascq
Institut D'electronique de Microélectronique et de Nanotechnologie Iemn
Alzina, Francesc
Spain, Barcelona
Institut Català de Nanociència I Nanotecnologia
Martínez, Alejandro V.
Spain, Valencia
Universitat Politècnica de València
Sotomayor Torres, Clivia M.
Spain, Barcelona
Institut Català de Nanociència I Nanotecnologia
Spain, Barcelona
Institució Catalana de Recerca I Estudis Avançats
Statistics
Citations: 146
Authors: 12
Affiliations: 9
Identifiers
Doi:
10.1038/ncomms5452
e-ISSN:
20411723