Computational imaging for reducing peak irradiance on focal planes

Jacob H. Wirth; Abbie T. Watnik; Grover A. Swartzlander

doi:10.1117/12.2304702

12 June 2018 Computational imaging for reducing peak irradiance on focal planes

Jacob H. Wirth, Abbie T. Watnik, Grover A. Swartzlander

Author Affiliations +

Proceedings Volume 10669, Computational Imaging III; 106690U (2018) https://doi.org/10.1117/12.2304702
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, Florida, United States

Abstract

A phase-only filter is placed in the pupil plane of an imaging system to engineer a new point spread function with a low peak intensity. Blurred detected images are then reconstructed in post-processing through Wiener Deconvolution. A Differential Evolution algorithm is implemented to optimize these filters for high SNR across the MTF. These filters are tested experimentally using a reflective Spatial Light Modulator (SLM) in the pupil of a system and successfully show the peak intensity reduced 100 times the diffraction limit. Results are compared to expected performance.

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Citation Download Citation

Jacob H. Wirth, Jacob H. Wirth, Abbie T. Watnik, Abbie T. Watnik, Grover A. Swartzlander, Grover A. Swartzlander, "Computational imaging for reducing peak irradiance on focal planes", Proc. SPIE 10669, Computational Imaging III, 106690U (12 June 2018); doi: 10.1117/12.2304702; https://doi.org/10.1117/12.2304702

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