Ultrafast transient holography: pump-probe microscopy goes widefield

Martin Hörmann,Federico Visentin,Andrea Zanetta,Giulia Grancini,Niek F. van Hulst,Matz Liebel,Giulio Cerullo,Franco V. A. Camargo

The International Conference on Ultrafast Phenomena (UP) 2022（2022）

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摘要

Pump-probe microscopy was limited to single-point detection because cameras are too slow for shot-to-shot demodulation. We use off-axis holography to create an all-optical lock-in camera, obtaining pump-probe images spanning 100×100 μm2. We use it to study exciton diffusion in perovskites around 100 diffraction-limited spots.

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