Magneto-optical coupling in whispering-gallery-mode resonators
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Peer-reviewed
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Abstract
We demonstrate that yttrium iron garnet microspheres support optical whispering-gallery modes similar to those in nonmagnetic dielectric materials. The direction of the ferromagnetic moment tunes both the resonant frequency via the Voigt effect as well as the degree of polarization rotation via the Faraday effect. An understanding of the magneto-optical coupling in whispering-gallery modes, where the propagation direction rotates with respect to the magnetization, is fundamental to the emerging field of cavity optomagnonics.
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Journal Title
Physical Review A
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Journal ISSN
2469-9926
1094-1622
1094-1622
Volume Title
92
Publisher
American Physical Society (APS)
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Except where otherwised noted, this item's license is described as Attribution-NonCommercial 4.0 International
Sponsorship
Engineering and Physical Sciences Research Council (EP/G060649/1)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
The Royal Society (uf130303)
European Research Council (648613)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
The Royal Society (uf130303)
European Research Council (648613)
Engineering and Physical Sciences Research Council (Grant IDs: EP/M50693X/1, EP/L027151/1), European Research Council (Grant ID: 648613), Hitachi (research fellowship), Royal Society (University Research Fellowship), Winton programme for the Physics of Sustainability