Compact fully monolithic optomechanical accelerometer
Applied Physics
2018-11-06 v1
Abstract
We present a highly compact and fully monolithic optomechanical accelerometer fabricated of a single wafer of fused-silica with a total volume of less than 2cc and a total mass of approximately 4 grams. This sensor demonstrates an unprecedented mQ-product of 50kg, highlighting its unique capabilities for reaching high sensitivity in acceleration sensing. The sensor includes a monolithically co-fabricated Fabry-Perot interferometer that uses the accelerometer test mass as a mirror to measure its displacement in orders of 10-12 m/rtHz, reaching acceleration sensitivities to the order of 100 ng/rtHz - 1 ug/rtHz above 1 Hz.
Keywords
Cite
@article{arxiv.1811.01049,
title = {Compact fully monolithic optomechanical accelerometer},
author = {Felipe Guzman and Lee M. Kumanchik and Ruven Spannagel and Claus Braxmaier},
journal= {arXiv preprint arXiv:1811.01049},
year = {2018}
}