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. 2021 Mar 9;12(4):1934–1946. doi: 10.1364/BOE.420724

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Fig. 2. — PA/US/OCT resolution and SNR of the MS-IVTM system. (a)-(c) unwrapped PA/US/OCT B-scan images of the tungsten wire (∼6 µm) at different imaging depths. (d) unwrapped OCT B-scan image of the mirror at different depths. And the insets in (a)-(d) show an enlarged view of the targets around 1.5 mm. (e), (f) Axial and transverse resolution of three imaging modalities from the enlarged view of the dashed box in (a)-(d) respectively. (g) Signal-to-noise ratio (SNR) of PA/US/OCT at different depths. (h) Resolution of PA/US/OCT at different depths with different targets.