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Article Dans Une Revue Journal of Optics Année : 2022

Characterization of spatiotemporal couplings with far-field beamlet cross-correlation

Résumé

Abstract We present a novel, straightforward method for the characterization of spatiotemporal couplings in ultra-short laser pulses. The method employs far-field interferometry and inverse Fourier transform spectroscopy, built on the theoretical basis derived in this paper. It stands out in its simplicity: it requires few non-standard optical elements and simple analysis algorithms. This method was used to measure the space-time intensity of our 100 TW class laser and to test the efficacy of a refractive doublet as a suppressor of pulse front curvature (PFC). The measured low-order spatiotemporal couplings agreed with ray-tracing simulations. In addition, we demonstrate a one-shot measurement technique, derived from our central method, which allows for quick and precise alignment of the compressor by pulse front tilt (PFT) minimization and for optimal refractive doublet positioning for the suppression of PFC.
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Origine : Publication financée par une institution
Licence : CC BY - Paternité

Dates et versions

hal-03795628 , version 1 (17-11-2023)

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Paternité

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Slava Smartsev, Sheroy Tata, Aaron Liberman, Michael Adelberg, Arujash Mohanty, et al.. Characterization of spatiotemporal couplings with far-field beamlet cross-correlation. Journal of Optics, 2022, 11 (1), pp.180. ⟨10.1088/2040-8986/ac9631⟩. ⟨hal-03795628⟩
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