Ultra-high intensity lasers as tools for novel physics

Yoon, Jun‐Bo; Sung, Jae Hee; Lee, Seong Ku; Lee, Hwang Woon; Nam, Chang Hee

doi:10.1007/s40042-022-00411-3

Cited by 4 publications

(1 citation statement)

References 51 publications

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“…The use of high intensity lasers is widely popular in industry and in scientific laboratories owing to their unique properties of focus ability, spectral bandwidth, pulse duration and coherence [1]. They can enable studies such as light matter interactions, high energy density physics, acceleration of fundamental particles and generation of radiation such as X-rays [2].…”

Section: Introductionmentioning

confidence: 99%

Real time pulse characterization for a terawatt laser facility

Hemani¹,

Galimberti²,

Koch³

et al. 2023

High-Power, High-Energy Lasers and Ultrafast Optical Technologies

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The technique of chirped pulse amplification has conveniently enabled the development of Joule-class laser facilities delivering terawatt levels of power with a single shot beam on target. In powerful systems like these, beam metrology for pulse charaterization is crucial for maintaining a high level of confidence in generating high intensity laser shots. Optical diagnostics for monitoring beam features such as spectra, beam profile, energy and also measuring dispersion and the compressed pulse duration are necessary. Spatio-temporal couplings such as angular dispersion caused by the presence of chromatic aberrations can distort the pulse energy and duration on target and affect laser matter interactions. A pulsefront- tilt (PFT) diagnostic utilizing a diffractive optic for determining angular dispersion and misalignment at shorter bandwidths is designed and implemented for our laser facility, along-with a homemade single shot auto-correlator for measuring pulse duration after the grating compressor. For real-time monitoring of the laser facility, a smart dashboard protocol using openBIS ELN (Electronics Lab Notebook) is administered to enable regular and uninterrupted saving of raw data which is integrated into the local dashboard for visualization and data analysis.

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Section: Introductionmentioning

confidence: 99%

Real time pulse characterization for a terawatt laser facility

Hemani¹,

Galimberti²,

Koch³

et al. 2023

High-Power, High-Energy Lasers and Ultrafast Optical Technologies

View full text Add to dashboard Cite

show abstract

Imaging electron angular distributions to assess a full-power petawatt-class laser focus

Ravichandran,

Huault,

Lera

et al. 2023

Phys. Rev. A

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Signatures of vacuum birefringence in low-power flying focus pulses

Formanek,

Palastro,

Ramsey

et al. 2024

Phys. Rev. D

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Vacuum birefringence produces a differential phase between orthogonally polarized components of a weak electromagnetic probe in the presence of a strong electromagnetic field. Despite representing a hallmark prediction of quantum electrodynamics, vacuum birefringence remains untested in pure light configurations due to the extremely large electromagnetic fields required for a detectable phase difference. Here, we exploit the programmable focal velocity and extended focal range of a flying focus laser pulse to substantially lower the laser power required for detection of vacuum birefringence. In the proposed scheme, a linearly polarized x-ray probe pulse counterpropagates with respect to a flying focus pulse, whose focus moves at the speed of light in the same direction as the x-ray probe. The peak intensity of the flying focus pulse overlaps the probe over millimeter-scale distances and induces a polarization ellipticity on the order of 10−10, which lies within the detection sensitivity of existing x-ray polarimeters. Published by the American Physical Society 2024

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Ultra-high intensity lasers as tools for novel physics

Cited by 4 publications

References 51 publications

Real time pulse characterization for a terawatt laser facility

Real time pulse characterization for a terawatt laser facility

Imaging electron angular distributions to assess a full-power petawatt-class laser focus

Signatures of vacuum birefringence in low-power flying focus pulses

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