MyJournals Home  

RSS FeedsSensors, Vol. 18, Pages 1558: Modelling of Cavity Optomechanical Magnetometers (Sensors)

 
 

21 may 2018 06:01:45

 
Sensors, Vol. 18, Pages 1558: Modelling of Cavity Optomechanical Magnetometers (Sensors)
 


Cavity optomechanical magnetic field sensors, constructed by coupling a magnetostrictive material to a micro-toroidal optical cavity, act as ultra-sensitive room temperature magnetometers with tens of micrometre size and broad bandwidth, combined with a simple operating scheme. Here, we develop a general recipe for predicting the field sensitivity of these devices. Several geometries are analysed, with a highest predicted sensitivity of 180 p T / Hz at 28 ? m resolution limited by thermal noise in good agreement with previous experimental observations. Furthermore, by adjusting the composition of the magnetostrictive material and its annealing process, a sensitivity as good as 20 p T / Hz may be possible at the same resolution. This method paves a way for future design of magnetostrictive material based optomechanical magnetometers, possibly allowing both scalar and vectorial magnetometers.


 
58 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 18, Pages 1553: Time-Sharing-Based Synchronization and Performance Evaluation of Color-Independent Visual-MIMO Communication (Sensors)
Sensors, Vol. 18, Pages 1557: Degree-of-Freedom Strengthened Cascade Array for DOD-DOA Estimation in MIMO Array Systems (Sensors)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics


Copyright © 2008 - 2024 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten