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(a) A schematic diagram of the experimental arrangement. Inset shows a 2D array of horizontal and vertical points in the input plane that are scanned across the laser beam. (b) A typical raw image recorded by the CCD, and how it is cropped and binned for analysis.
Independent 2D spatial intensity distributions at the detection plane of the scattering sphere in Sample 1 generated by OPTICA: (a) The centrosymmetric component. (b) and (c) the dumbbell shaped components. The white dotted circles in the images presented in (b) and (c) are provided as guide for the eyes to show the high intensity and low intensity areas of the dumbbell. The white rectangles in the images are the regions that are integrated over to generate the spatial profiles. In the lower frame of (a), the solid line represents a Green’s function fit to the experimental data represented by open squares.
Comparison of the known and OPTICA determined positions of the targets in Sample 2.
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