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Two-color pump-probe interferometry of ultra-fast light-matter interaction

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posted on 2024-07-11, 08:37 authored by Yoshio Hayasaki, Shin Ichi Fukuda, Satoshi Hasegawa, Saulius JuodkazisSaulius Juodkazis
Two-color side-view probing of light-matter interaction from minute focal volume of a tightly focused fs-laser pump pulse reveals charge dynamics with high 0.9 μm optical resolution and approximately ~45fs temporal resolution defined by pulse duration. Use of two colors is advantageous for probing optically excited plasma regions with different density. Holographical digital focusing and spatial filtering were implemented to obtain the same resolution images for subsequent Fourier analysis. Fast plasma density decay with time constant ~150 fs was resolved and is consistent with self-Trapping. Potential applications of an optical control over light-induced defects with deep-sub-wavelength resolution is discussed.

Funding

ARC | DP130101205

ARC | DP170100131

New landscape of non-equilibrium material phases : Australian Research Council (ARC) | DP170100131

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ISSN

2045-2322

Journal title

Scientific Reports

Volume

7

Issue

1

Article number

article no. 10405

Pagination

10405-

Publisher

Nature Publishing Group

Copyright statement

Copyright © 2017 The Author(s). Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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eng

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