Holographic laser-driven light sources for computational imaging

Kota Kumagai; Hsin-hui Huang; Koji Hatanaka; Yoshio Hayasaki

doi:10.1117/12.2686667

27 November 2023 Holographic laser-driven light sources for computational imaging

Kota Kumagai, Hsin-hui Huang, Koji Hatanaka, Yoshio Hayasaki

Proceedings Volume 12766, Advanced Optical Imaging Technologies VI; 127660D (2023) https://doi.org/10.1117/12.2686667
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

Femtosecond-laser-driven light sources on a water film have been applied for computational broadband imaging. The spatially selective generated light sources on a water film form a structured illumination pattern with a broadband wavelength including visible and non-visible region. The spatial position of the light source was controlled by beam deflection using a galvanometer scanner or phase modulation with computer-generated holograms displayed on a liquid crystal on silicon spatial light modulator. The light source excited on a water film can produce a broad emission spectrum that includes x-rays and terahertz waves in addition to the visible region. We have demonstrated x-ray and visible imaging by using the femtosecond-laser-driven light sources which was two-dimensionally generated on a water film. Furthermore, the imaging time was reduced while maintaining the number of pixels in the reconstructed image by using compressed sensing algorithms and coded illumination patterns.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kota Kumagai, Hsin-hui Huang, Koji Hatanaka, and Yoshio Hayasaki "Holographic laser-driven light sources for computational imaging", Proc. SPIE 12766, Advanced Optical Imaging Technologies VI, 127660D (27 November 2023); https://doi.org/10.1117/12.2686667

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