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arXiv · 2208.03005

Phase-quadrature quantum imaging with undetected photons

Björn Erik Haase·Joshua Hennig·Mirco Kutas·Erik Waller·Julian Hering·Georg von Freymann·Daniel Molter
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Abstract

Sensing with undetected photons allows access to spectral regions with simultaneous detection of photons of another region and is based on nonlinear interferometry. To obtain the full information of a sample, the corresponding interferogram has to be analyzed in terms of amplitude and phase, which has been realized so far by multiple measurements followed by phase variation. Here, we present a polarization-optics-based phase-quadrature implementation in a nonlinear interferometer for imaging with undetected photons in the infrared region. This allows us to obtain phase and visibility with a single image acquisition without the need of varying optical paths or phases, thus enabling the detection of dynamic processes. We demonstrate the usefullness of our method on a static phase mask opaque to the detected photons as well as on dynamic measurement tasks as the drying of an isopropanol film and the stretching of an adhesive tape.

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Björn Erik Haase, Joshua Hennig, Mirco Kutas, Erik Waller, Julian Hering, Georg von Freymann, Daniel Molter. 2022-08-05. Phase-quadrature quantum imaging with undetected photons. https://doi.org/10.1364/oe.471837

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