12 April 2005 Photonic media with whispering-gallery modes
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We theoretically show that achieving high Q-factors of small whispering gallery mode resonators, together with significant non-harmonism (non-equidistance) of its modes, allows for extensive analogy between properties of atoms and the resonator modes. The non-harmonism in very high-Q microresonators is caused by the material as well as geometrical dispersion. The established analogy leads to creating of a "photonic" media with properties similar to those of atomic media. For instance, effective "two-level" systems can be formed within the resonator. The "levels" of the systems, i.e. the resonator modes, can be coupled with microwave or optical fields. Strong confinement of the light in the resonator along with high Q-factors results in nonlinear processes at low light levels even with small nonlinearities typical of optically transparent materials.
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Lute Maleki, Lute Maleki, Andrey B. Matsko, Andrey B. Matsko, Dmitry Strekalov, Dmitry Strekalov, Anatoliy A. Savchenkov, Anatoliy A. Savchenkov, } "Photonic media with whispering-gallery modes", Proc. SPIE 5708, Laser Resonators and Beam Control VIII, (12 April 2005); doi: 10.1117/12.609083; https://doi.org/10.1117/12.609083


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