23 February 2018 Quantitative phase imaging using a programmable wavefront sensor
Author Affiliations +
Proceedings Volume 10503, Quantitative Phase Imaging IV; 105032Y (2018) https://doi.org/10.1117/12.2289798
Event: SPIE BiOS, 2018, San Francisco, California, United States
We perform phase imaging using a non-interferometric approach to measure the complex amplitude of a wavefront. We overcome the limitations in spatial resolution, optical efficiency, and dynamic range that are found in Shack-Hartmann wavefront sensing. To do so, we sample the wavefront with a high-speed spatial light modulator. A single lens forms a time-dependent light distribution on its focal plane, where a position detector is placed. Our approach is lenslet-free and does not rely on any kind of iterative or unwrap algorithm. The validity of our technique is demonstrated by performing both aberration sensing and phase imaging of transparent samples.
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F. Soldevila, V. Durán, P. Clemente, J. Lancis, and E. Tajahuerce "Quantitative phase imaging using a programmable wavefront sensor", Proc. SPIE 10503, Quantitative Phase Imaging IV, 105032Y (23 February 2018); doi: 10.1117/12.2289798; https://doi.org/10.1117/12.2289798

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