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SEM image of (a) the integrated optofluidic ring resonator based on liquid ARROWs. Reprinted with permission from [69] (Copyright (2010) AIP); (b) PhC-OFM with PhC structure height and width of 90 μm and 130 μm, respectively. In the image are also shown the fiber grooves. Reprinted with permission from [74] (Copyright (2012) RSC Publishing); (c) Optical image of microbubble with outer diameter of ∼340 μm. (Reprinted with permission from [77] Copyright (2011) OSA.)
