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. Author manuscript; available in PMC: 2021 Aug 5.
Published in final edited form as: Nat Photonics. 2020 Jun 1;14(9):564–569. doi: 10.1038/s41566-020-0638-5

Fig. 4 |. HOT of an inhomogeneous nonlinear crystal.

Fig. 4 |

a, Three transverse SHG intensity images of a BBO crystal, measured at the focal plane (z = 0) and 7 μm above and below the focal plane. b, HOT reconstruction results of the same z-slice in a. Colour bars in a and b are in arbitrary units. c, A 3D view of the HOT reconstruction. A rotating rendering of this reconstruction can be viewed in Supplementary Video 1. Scale bars, 10 μm.