Triple-Resonant Brillouin Light Scattering in Magneto-Optical Cavities.
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Peer-reviewed
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Abstract
An enhancement in Brillouin light scattering of optical photons with magnons is demonstrated in magneto-optical whispering gallery mode resonators tuned to a triple-resonance point. This occurs when both the input and output optical modes are resonant with those of the whispering gallery resonator, with a separation given by the ferromagnetic resonance frequency. The identification and excitation of specific optical modes allows us to gain a clear understanding of the mode-matching conditions. A selection rule due to wave vector matching leads to an intrinsic single-sideband excitation. Strong suppression of one sideband is essential for one-to-one frequency mapping in coherent optical-to-microwave conversion.
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Keywords
physics.optics, physics.optics, cond-mat.mes-hall
Journal Title
Phys Rev Lett
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Journal ISSN
0031-9007
1079-7114
1079-7114
Volume Title
117
Publisher
American Physical Society (APS)
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Sponsorship
The Royal Society (uf130303)
European Research Council (648613)
European Research Council (648613)
Engineering and Physical Sciences Research Council (Grant ID: EP/ M50693X/1), European Research Council (Grant ID: 648613), Hitachi (Research Fellowship), Royal Society (University Research Fellowship), Winton Programme for the Physics of Sustainability