2013/03/24 by Francis Torres, Torres, Francis Achilles, Phillip Meng +19 · 1 citation
Engineering · Physics and Astronomy · #Advanced Fiber Optic Sensors #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Mechanical and Optical Resonators #Optics (physics.optics) #Photonic and Optical Devices
paper · pdf · doi:10.48550/arxiv.1303.6595
openalex publication_date 2013/03/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Milligram-scale resonators have been shown to be suitable for the creation of\n3-mode optoacoustic parametric amplifiers, based on a phenomena first predicted\nfor advanced gravitational-wave detectors. To achieve practical optoacoustic\nparametric amplification, high quality factor resonators are required. We\npresent millimetre-scale silicon resonators designed to exhibit a torsional\nvibration mode with a frequency in the 105 - 106 Hz range, for observation of\n3-mode optoacoustic interactions in a compact table-top system. Our design\nincorporates an isolation stage and minimizes the acoustic loss from optical\ncoating. We observe a quality factor of 7.5 x 105 for a mode frequency of\n401.5 kHz, at room temperature and pressure of 10-3 Pa. We confirmed the mode\nshape by mapping the amplitude response across the resonator and comparing to\nfinite element modelling. This study contributes towards the development of\n3-mode optoacoustic parametric amplifiers for use in novel high-sensitivity\nsignal transducers and quantum measurement experiments.\n