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Fig. 1 | PhotoniX

Fig. 1

From: Visualizing cortical blood perfusion after photothrombotic stroke in vivo by needle-shaped beam optical coherence tomography angiography

Fig. 1

Principle of NB-OCTA with a customized DOE. a DOE phase pattern for an NB composed of multiple phases to generate m foci. b x–z (left two) profiles of a 620 μm NB generated by DOE and the Gaussian beam generated solely by the objective. And x–y (right two) profiles of the NB and GB at different depth positions. c Experimental setup of the NB-OCTA system, with customized DOE in the sample arm. DC, dispersion compensator

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