Measurements of THz produced by a two-color flying focus

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This is a Experimental Study study.

J. J. Pigeon; H. S. Markland; R. Boni; J. Kendrick; Mervin Lim Pac Chong; A. Elliott; Kyle Miller; J. P. Palastro; D. H. Froula

doi:10.1364/cleo_at.2025.jps200_14

January 1, 2025

Measurements of THz produced by a two-color flying focus

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Key Points

Measurements indicate terahertz radiation has a flat-top beam profile instead of the expected ring shape.
The results suggest that the two-color flying focus method effectively mitigates the Cherenkov effect.
Photoionization is used to generate terahertz radiation, showcasing a new approach in beam profiling.
Velocity matching in the experimental setup plays a crucial role in altering the beam profile characteristics.

Implication

Measurements assess terahertz beam profile, indicating flat-top shape due to reduced Cherenkov effect.

Abstract

Terahertz radiation was produced via photoionization by a two-color ultrafast flying focus. Terahertz beam profile measurements reveal a flat-top rather than the typical ring-shaped profile, indicative of mitigating the Cherenkov effect by velocity matching.

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Cite This Study

Pigeon et al. (2025) studied this question.

synapsesocial.com/papers/68d464f131b076d99fa64463 https://doi.org/10.1364/cleo_at.2025.jps200_14

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Measurements of THz produced by a two-color flying focus

Key Points

Implication

Abstract

Discussion

Cite This Study

Measurements of THz produced by a two-color flying focus

Key Points

Implication

Abstract

Discussion

Cite This Study

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