@inproceedings{a2c446b1c80e45028a5afb35fb3161d3,
title = "High sensitivity, high bandwidth photonic integrated optomechanical accelerometer: A numerical approach",
abstract = "We present a theoretical and numerical investigation of a novel photonic integrated optomechanical accelerometer, which utilizes the elasto-optic effect in a silicon nitride racetrack resonator for precise motion detection. The study combines finite-element analysis using COMSOL Multiphysics, coupling structural mechanics, wave optics at telecom wavelengths, and heat transfer in solids to estimate key performance metrics based on realistic material parameters. We estimate an optomechanical coupling constant of 0.8 MHz per nanometer, along with high mechanical and optical quality factors. Our predictions indicate a shot noise-limited displacement resolution at the femtometer level, and acceleration noise floors below 300 nano-g across a 15 kHz bandwidth. These results represent a state-of-the-art performance, placing this proposed accelerometer among the best integrated optomechanical accelerometers with comparable bandwidth and footprint.",
keywords = "Photonic integrated circuits, optomechanical accelerometer, precision sensing, silicon nitride photonics",
author = "\{Hernandez Rivero\}, \{Jose D.\} and Brina Martinez and Daniel George and Andrea Nelson and Moritz Mehmet and Mu{\~n}oz, \{Jose Sanjuan\} and Felipe Guzman",
note = "Publisher Copyright: {\textcopyright} 2025 SPIE. All rights reserved.; 15th Optical Modeling and Performance Predictions ; Conference date: 04-08-2025 Through 04-08-2025",
year = "2025",
month = sep,
day = "16",
doi = "10.1117/12.3063771",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Kahan, \{Mark A.\} and Catherine Merrill",
booktitle = "Optical Modeling and Performance Predictions XV",
}