High quality factor mg-scale silicon mechanical resonators for 3-mode optoacoustic parametric amplifiers
Abstract
Milligram-scale resonators have been shown to be suitable for the creation of 3-mode optoacoustic parametric amplifiers, based on a phenomena first predicted for advanced gravitational-wave detectors. To achieve practical optoacoustic parametric amplification, high quality factor resonators are required. We present millimetre-scale silicon resonators designed to exhibit a torsional vibration mode with a frequency in the 10^5 - 10^6 Hz range, for observation of 3-mode optoacoustic interactions in a compact table-top system. Our design incorporates an isolation stage and minimizes the acoustic loss from optical coating. We observe a quality factor of 7.5 x 10^5 for a mode frequency of 401.5 kHz, at room temperature and pressure of 10^-3 Pa. We confirmed the mode shape by mapping the amplitude response across the resonator and comparing to finite element modelling. This study contributes towards the development of 3-mode optoacoustic parametric amplifiers for use in novel high-sensitivity signal transducers and quantum measurement experiments.
Keywords
Cite
@article{arxiv.1303.6595,
title = {High quality factor mg-scale silicon mechanical resonators for 3-mode optoacoustic parametric amplifiers},
author = {Francis Achilles Torres and Phillip Meng and Li Ju and Chunnong Zhao and David Gerald Blair and Kai-Yu Liu and Shiuh Chao and Mariusz Martyniuk and Isabelle Roch-Jeune and Raffaele Flaminio and Christophe Michel},
journal= {arXiv preprint arXiv:1303.6595},
year = {2013}
}
Comments
6 pages, 4 figures, 2 tables