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. 2019 Feb 1;5(2):eaau3407. doi: 10.1126/sciadv.aau3407

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Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — (A) Amplitude and (B) phase images focused on a part of sample A. Characterization of thermal emission around (C to E) a crack and (F to H) wrinkle. The (C) crack and (F) wrinkle are optical microscopy and AFM images, respectively. Phase angle dependence of (D and G) amplitude images and (E and H) point intensities. a.u., arbitrary units.