2014/05/30 by Mian Zhang, Gustavo de Oliveira Luiz, Gustavo Luiz +5 · 24 citations
Engineering · Physics and Astronomy · #Acoustics #Advanced MEMS and NEMS Technologies #Computer science #Force Microscopy Techniques and Applications #Interference (communication) #Materials science #Mechanical and Optical Resonators #Optics #Optoelectronics #Physics #Resonator #Telecommunications #physics.optics
paper · pdf · open access · doi:10.1063/1.4892417
published in Applied Physics Letters 105(5) (American Institute of Physics) · 5 pages, 3 figures
arxiv created 2014/05/30 · openalex publication_date 2014/08/04 · arxiv updated 2015/05/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Optomechanical resonators suffer from the dissipation of mechanical energy through the necessary anchors enabling the suspension of the structure. Here, we show that such structural loss in an optomechanical oscillator can be almost completely eliminated through the destructive interference of elastic waves using dual-disk structures. We also present both analytical and numerical models that predict the observed interference of elastic waves. Our experimental data reveal unstressed silicon nitride (Si3N4) devices with mechanical Q-factors up to 104 at mechanical frequencies of f = 102 MHz (fQ = 1012) at room temperature.