Sensitivity and performance of cavity optomechanical field sensors

Forstner, Stefan, Knittel, Joachim, Sheridan, Eoin, Swaim, Jon D., Rubinsztein-Dunlop, Halina and Bowen, Warwick P. (2012) Sensitivity and performance of cavity optomechanical field sensors. Photonic Sensors, 2 3: 259-270. doi:10.1007/s13320-012-0067-2

Author Forstner, Stefan
Knittel, Joachim
Sheridan, Eoin
Swaim, Jon D.
Rubinsztein-Dunlop, Halina
Bowen, Warwick P.
Title Sensitivity and performance of cavity optomechanical field sensors
Journal name Photonic Sensors   Check publisher's open access policy
ISSN 1674-9251
Publication date 2012-07-10
Year available 2012
Sub-type Article (original research)
DOI 10.1007/s13320-012-0067-2
Open Access Status DOI
Volume 2
Issue 3
Start page 259
End page 270
Total pages 12
Place of publication Heidelberg, Germany
Publisher SpringerOpen
Language eng
Subject 2504 Electronic, Optical and Magnetic Materials
3107 Atomic and Molecular Physics, and Optics
Abstract This article describes in detail a technique for modeling cavity optomechanical field sensors. A magnetic or electric field induces a spatially varying stress across the sensor, which then induces a force on mechanical eigenmodes of the system. The force on each oscillator can then be determined from an overlap integral between magnetostrictive stress and the corresponding eigenmode, with the optomechanical coupling strength determining the ultimate resolution with which this force can be detected. Furthermore, an optomechanical magnetic field sensor is compared to other magnetic field sensors in terms of sensitivity and potential for miniaturization. It is shown that an optomechanical sensor can potentially outperform state-of-the-art magnetometers of similar size, in particular other sensors based on a magnetostrictive mechanism.
Keyword Cavity optomechanics
Integrated microcavity
Magnetic field sensors
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 11 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Fri, 09 Feb 2018, 13:26:23 EST