Advances in single shot spatial frequency modulation imaging (SPIFI)

Jeffrey A. Squier; Seth Cottrell; Daniel Scarbrough; Anna Thomas; Olivier Bernard; Yves Bellouard; Randy Bartels; Robert Reeves

doi:10.1117/12.3028106

8 October 2024 Advances in single shot spatial frequency modulation imaging (SPIFI)

Jeffrey A. Squier, Seth Cottrell, Daniel Scarbrough, Anna Thomas, Olivier Bernard, Yves Bellouard, Randy Bartels, Robert Reeves

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Proceedings Volume 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII; 1313905 (2024) https://doi.org/10.1117/12.3028106
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

Single shot SPIFI operating in the Fourier Domain is demonstrated for the first time to our knowledge. We present initial results capturing Fourier Domain single shot images with both one and two-dimensional detectors and demonstrate that the same enhanced frequency support that is characteristic of classical SPIFI translates directly into single shot SPIFI architectures as well. Linear Fourier Domain single shot SPIFI is systematically analyzed, for both types of detectors. Finally, we show that despite the complex pulse structure imposed on the illumination beam by SPIFI, nonlinear single shot SPIFI can be realized, and third harmonic generation imaging is demonstrated. Prepared by LLNL under Contract DE-AC52-07NA27344. LLNL-ABS-860152.

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Jeffrey A. Squier, Seth Cottrell, Daniel Scarbrough, Anna Thomas, Olivier Bernard, Yves Bellouard, Randy Bartels, and Robert Reeves "Advances in single shot spatial frequency modulation imaging (SPIFI)", Proc. SPIE 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII, 1313905 (8 October 2024); https://doi.org/10.1117/12.3028106

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KEYWORDS

Spatial frequencies

Modulation

Cameras

Femtosecond pulse shaping

Light sources and illumination

Education and training

Femtosecond phenomena

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