Compressed ultrafast photography: from three to four dimensions

Dalong Qi; Chengshuai Yang; Fengyan Cao; Shian Zhang

doi:10.1117/12.2575129

10 October 2020 Compressed ultrafast photography: from three to four dimensions

Dalong Qi, Chengshuai Yang, Fengyan Cao, Shian Zhang

Proceedings Volume 11549, Advanced Optical Imaging Technologies III; 115490A (2020) https://doi.org/10.1117/12.2575129
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

The spatial, temporal, and spectral information in optical imaging play a crucial role in exploring the unknown world and unencrypting natural mysteries. However, the existing optical imaging techniques can only acquire the spatiotemporal or spatiospectral information of the object with the single-shot method. In this talk, I’d like to introduce a hyperspectrally compressed ultrafast photography (HCUP) that can simultaneously record the spatial, temporal, and spectral information of the object. In our HCUP, the dynamical spatial resolution is 1.26 lp/mm in the horizontal direction and 1.41 lp/mm in the vertical direction, the temporal frame interval is 2 ps, and the spectral frame interval is 1.72 nm. Based on our HCUP, we realized the spatiotemporal-spatiospectral four-dimensional optical imaging of the chirped picosecond laser pulse and the photoluminescence dynamics. It can be expected that HCUP is flexible to couple to a variety of imaging modalities, including microscopes and telescopes, which enable recording the object at the spatial scales from cellular organelles to galaxies. Considering the powerful function of HCUP in optical imaging, it will open a new route in related application areas.

Conference Presentation

Citation Download Citation

Dalong Qi, Chengshuai Yang, Fengyan Cao, and Shian Zhang "Compressed ultrafast photography: from three to four dimensions", Proc. SPIE 11549, Advanced Optical Imaging Technologies III, 115490A (10 October 2020); https://doi.org/10.1117/12.2575129

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