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Opt Lett. 2011 Sep 1;36(17):3491-3. doi: 10.1364/OL.36.003491.

Real-time digital holographic microscopy of multiple and arbitrarily oriented planes.

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  • 1Dipartimento di Fisica, Universit√† di Roma Sapienza, Roma, Italy.


Digital holographic microscopy is used to numerically refocus a recorded hologram at an arbitrary axial distance. However, as a straightforward property of coherent light fields, image reconstruction on an arbitrary tilted plane could be directly obtained by a rotation in k-space. We demonstrate that this property allows the real-time microscopic inspection of particle distribution over three mutually orthogonal planes at the same time. As a straightforward application we use the proposed technique for real-time monitoring of fluid flow over the three cross sections of a microfluidic channel.

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