 A novel approach to generating large-scale, 3D images allows tracking of individual collagen fibers and characterization of their structural organization. 30 December 2009
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 Stress polishing toric mirrors minimizes residual speckles in stellar images and improves the accuracy of extrasolar-planet detection. 21 December 2009
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 The optimal angular separation of laser-guide stars depends critically on the order of the wavefront's phase aberrations, the outer scale of turbulence, and the telescope's aperture. 21 December 2009
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 A subwavelength-scale aperture on a hollow silicon tip, combined with a near-field scanning-optical microscope, facilitates significant advances in nanophotolithography. 15 December 2009
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 Using a simple point-source hologram and a grating in a grazing incidence configuration can yield a field-of-view that is unaffected by magnification. 20 November 2009
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