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The radial spectral power of HOM images and images reconstructed from single raw holograms. (a) The radial spectral power of images with electro-kinetic flow (Fig. 4). (b) The radial spectral power of images with pressure flow (Fig. 7). In both cases the image radial frequency bandwidth is approximately doubled, leading to a doubling of the effective numerical aperture of the image. We therefore conclude that HOM has an effective NA of ~0.3-0.4.
