4 March 2014 Spherical optical microresonator array as a multi-purpose measuring device
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Optical resonances of spherical microresonators are of great interest measurements with high sensitivity. Usually the quantity to be measured is determined by the shift of the resonances of a single particle. Unfortunately, for this purpose, an expensive low-bandwidth tunable laser system with high accuracy is needed. When using an array of microresonators with slightly different size, each particle has a different resonance behavior. A change of the quantity to be measured leads to a change of the intensity distribution over the entire array. Therefore, using a microresonator array it is sufficient to measure the intensity distribution over all particles at a fixed wavelength.
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Thomas Weigel, Henrik Dobbelstein, Cemal Esen, Gustav Schweiger, Andreas Ostendorf, "Spherical optical microresonator array as a multi-purpose measuring device", Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 89600H (4 March 2014); doi: 10.1117/12.2037312; https://doi.org/10.1117/12.2037312

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