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Imaging with third harmonic generation (THG) provides a powerful label-free approach to probing biological systems, particularly looking at structures formed by lipids. We present the first demonstration of THG widefield holographic microscopy. Holographic microscopy preserves the amplitude and phase of the measured field, which enables us to construct a synthetic spatial aperture with expanded field of view for complex valued THG images. Additionally, we implement a matrix approach postprocessing algorithm to reconstruct aberration-free THG holographic images by estimating and correcting for phase aberrations and scattering distortions.
Farah et al. (Wed,) studied this question.
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