Abstract

We present a new optical deflection tomography method that takes advantage of the phase-shifting schlieren. The reconstruction algorithm is based on filtered backprojection. The instrument is well adapted for three- dimensional imaging of spatially sparse objects exhibiting large refractive index variations. It achieves a 35μm resolution with a 3mm depth of field. Its performance is illustrated with a bundle of fibers immersed in a matching index solution.

© 2010 Optical Society of America

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