Spatiotemporal plasma hologram
Zhaohui Wu, Hao Peng, Xiaoming Zeng, Zhaoli Li, Xiaodong Wang, Xiao Wang, Jie Mu, Yanlei Zuo, and Kainan Zhou, Nathaniel J. Fisch, C. Riconda, S. Weber

TL;DR
This paper demonstrates the first experimental realization of a 4D plasma hologram capable of recording and reconstructing the full spatiotemporal profile of intense laser pulses, enabling advanced ultrafast optical applications.
Contribution
It introduces a novel single-shot plasma holography technique for direct, background-free measurement of laser spatiotemporal fields with potential for high-speed optical data processing.
Findings
Successfully reconstructed Gaussian and Laguerre-Gaussian beam profiles.
Demonstrated stable plasma grating lifetime of 30-40 ps.
Showcased potential for high-repetition-rate ultrafast laser manipulation.
Abstract
We present the first experimental realization of a four-dimensional (4D) plasma hologram capable of recording and reconstructing the full spatiotemporal information of intense laser pulses. The holographic encoding is achieved through the interference of a long object pulse and a counter-propagating short reference pulse, generating an ionized plasma grating that captures both spatial and temporal characteristics of the laser field. A first-order diffractive probe enables the retrieval of encoded information, successfully reconstructing the spatiotemporal profiles of Gaussian and Laguerre-Gaussian beams. The experiment demonstrates the ability to encode artificial information into the laser pulse via spectral modulation and retrieve it through plasma grating diffraction, high-lighting potential applications in ultraintense optical data processing. Key innovations include a single-shot,…
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Taxonomy
TopicsLaser-Plasma Interactions and Diagnostics · Laser-Matter Interactions and Applications · Plasma Diagnostics and Applications
