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Nov 13 – 15, 2023
CEA
Europe/Paris timezone

Simple few-shot method for spectrally resolving the wavefront of an ultrashort laser pulse

Nov 15, 2023, 10:15 AM
25m
Amphi Bloch (CEA)

Amphi Bloch

CEA

bâtiment 772, CEA, Orme des merisiers, 91190 Saint-Aubin
Oral Installations Simulations électrons

Speaker

Mr Slava Smartsev (Laboratoire d'Optique Appliquée (LOA))

Description

We present a novel and straightforward approach for the spatio-spectral characterization of ultrashort pulses: IMPALA (iterative multispectral phase retrieval for lasers) {1}. This minimally intrusive method relies on placing a mask with specially arranged pinholes in the beam path before the focusing optic and retrieving the spectrally-resolved laser wavefront from the speckle pattern produced at focus. We test the efficacy of this new method by accurately retrieving chromatic aberrations, such as pulse front tilt, pulse front curvature, and higher-order aberrations introduced by a spherical lens. The simplicity and scalability of this method, combined with its compatibility with single-shot operation, make it a promising candidate to become a new standard diagnostic tool in high-intensity laser facilities.

IMPALA schematic diagram

References:
{1} S. Smartsev et. al. arXiv:2307.15799

Primary author

Mr Slava Smartsev (Laboratoire d'Optique Appliquée (LOA))

Co-authors

Mr Aaron Liberman (Weizmann Institute of Science) Mr Igor Andriyash (Laboratoire d’Optique Appliquee) Mr Antoine Cavagna (Laboratoire d'Optique Appliquée (LOA)) Mr Alessandro Flacco (LOA/ENSTA) Ms Camilla Giaccaglia (Laboratoire d'Optique Appliquée (LOA)) Ms Jaismeen Kaur (Laboratoire d'Optique Appliquée (LOA)) Ms Joséphine Monzac (Laboratoire d'Optique Appliquée (LOA)) Mr Sheroy Tata (Weizmann Institute of Science) Ms Aline Vernier (Laboratoire d'Optique Appliquée (LOA)) Mr Victor Malka (Weizmann Institute of Science) Mr Rodrigo Lopez-Martens (Laboratoire d'Optique Appliquée (LOA)) Mr Jérôme FAURE (LOA)

Presentation materials