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High order Fano resonance in the time domain for a freezing water microdroplet
Igor V Minin1, Oleg V Minin1, Song Zhou2
1National Research Tomsk Polytechnical University, Tomsk, 634050, Russia.
Abstract:
Fog is a collection of micro drops of water suspended in the air, formed as a result of cooling of moist air. In supercooled air, water droplets freeze, forming ice fog at air temperatures below - 10-15° C. As the ice drop freezes, it forms a core-shell structure. In such a particle, a high-Q Fano resonance is possible, which entails the formation of a magnetic pulse. Our theoretical calculations have predicted the time-dependent formation of Fano resonances in a freezing the outside in water droplet. Time-varying unconventional Fano resonance with magnetic field enhancement yield new method to manipulate light-matter interactions in a freezing water droplet. To the best of our knowledge this mechanism was not discussed previously.
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