New approach for ultrahigh-speed imaging

Ultrahigh-speed imaging is essential for many applications in science, engineering and clinical diagnostics. In particular, it is critical for observing ultrafast non-repetitive events, for which the pump-probe technique is inapplicable. We develop a conceptually new approach for ultrahigh-speed imaging, which we term Time-Resolved by Multiplexed Ptychography (TIMP) [1]. In TIMP, time-resolved complex-valued multiple frames of the object are recovered algorithmically from the data measured in a single CCD exposure of a ptychographic imaging system. This ‘magic’ is possible due to: i) the inherent large redundancy in ptychographic data and ii) our recent proposition and experimental demonstration of single-shot ptychography [2].

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1. P. Sidorenko, O. Lahav and O. Cohen, Ptychographic ultrahigh-speed imaging, Optics Express, 25, 10997 (2017).
2. Pavel Sidorenko and Oren Cohen, Single-shot ptychography, Optica, 3, 9 (2016).