Micron-scaled photonic devices are being continuously improved by reducing their size and their optical dissipation, which gives rise to new phenomena. Above, light enhanced by multiple recirculation in a micro sphere pushes the electrons to oscillate with amplitudes so large that they start vibrating in a non-sinusoidal manner that includes high harmonics such as one that emits the colorful visible light. This research is being conducted by Prof. Tal Carmon. Additional Information: http://www.eecs.umich.edu/eecs/about/articles/2009/Carmon_yia.html
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