Model of a microtoroidal magnetometer

Forstner, S., Knittel, J., Rubinsztein-Dunlop, H. and Bowen, W. P. (2012). Model of a microtoroidal magnetometer. In: Francis Berghmans, Anna Grazia Mignani and Piet De Moor, Proceedings of SPIE: Optical Sensing and Detection II. Optical Sensing and Detection II, Brussels, Belgium, (84390U.1-84390U.8). 16-19 April 2012. doi:10.1117/12.920057

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Author Forstner, S.
Knittel, J.
Rubinsztein-Dunlop, H.
Bowen, W. P.
Title of paper Model of a microtoroidal magnetometer
Conference name Optical Sensing and Detection II
Conference location Brussels, Belgium
Conference dates 16-19 April 2012
Proceedings title Proceedings of SPIE: Optical Sensing and Detection II   Check publisher's open access policy
Journal name Proceedings of SPIE - The International Society for Optical Engineering   Check publisher's open access policy
Series SPIE Proceedings
Place of Publication Bellingham, WA, United States
Publisher SPIE - International Society for Optical Engineering
Publication Year 2012
Sub-type Fully published paper
DOI 10.1117/12.920057
Open Access Status File (Publisher version)
ISBN 978-0-8194-9131-2
ISSN 0277-786X
Editor Francis Berghmans
Anna Grazia Mignani
Piet De Moor
Volume 8439
Start page 84390U.1
End page 84390U.8
Total pages 8
Language eng
Abstract/Summary We present a model of a cavity optomechanical magnetic field sensor based on a microtoroidal resonator. The magnetic field induced expansion of a magnetostrictive material is transduced onto the physical structure of a highly compliant optical microresonator. The resulting motion is read out optically with ultra-high sensitivity. According to our theoretical model sensitivities of up to 750 fT/√ Hz may be possible. The simultaneous presence of high-quality mechanical and optical resonances in microtoroids greatly enhances both the response to the magnetic field and the measurement sensitivity.
Keyword Cavity optomechanics
Magnetic field sensors
Integrated microcavity
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article #84390U

Document type: Conference Paper
Collections: School of Mathematics and Physics
Official 2013 Collection
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
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