Microbubble resonator images
Left: Photothermal maps of a microbubble resonator, both out-of-focus (top), and in-focus (bottom). Scale bars 20μm. Right: Optical micrographs of two microbubble resonators with different geometries. Scale bars 20um.
Image credit: ACS Nano; https://pubs.acs.org/doi/abs/10.1021/acsnano.9b04702
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