Recently, our group has introduced Dynamic Adaptive Scattering Compensation Holography (DASH), a sensorless wavefront correction method for nonlinear imaging, which allows retrieving even strong wavefront aberrations in short times.The possibility to compensate the adverse effects of high spatial frequency volumetric scatterers shifts yet another problem into the focus: the small size of corrected sample regions, which sometimes measure only a few µm across. Real-world biological applications, however, demand the imaging of larger fields, making it highly important to find ways of enlarging these correction zones.
We present a sample-conjugate version of DASH, which addresses this problem in two ways: While sample-conjugation is naturally better suited to compensate the effect of certain scatterers, the use of a large pixel count SLM further allows applying multiple correction patterns simultaneously.
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