Magneto-optical coupling in whispering-gallery-mode resonators
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.
- Publication:
-
Physical Review A
- Pub Date:
- December 2015
- DOI:
- arXiv:
- arXiv:1510.06661
- Bibcode:
- 2015PhRvA..92f3845H
- Keywords:
-
- 42.79.Gn;
- 42.50.Pq;
- 42.50.Ct;
- 78.20.Ls;
- Optical waveguides and couplers;
- Cavity quantum electrodynamics;
- micromasers;
- Quantum description of interaction of light and matter;
- related experiments;
- Magnetooptical effects;
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Physics - Optics
- E-Print:
- 5 pages, 4 figures