High Power Laser Science and Engineering, Volume. 9, Issue 2, 02000e16(2021)
Innovative single-shot 2D pulse front tilt diagnostic
Figures & Tables(8)
Fig. 1. Simulated image of the first diffracted spot (
) in 
.
Fig. 2. Camera image comparison for a 
FWHM Gaussian beam with 
FWHM Gaussian spectrum around 
and AD of 
: (left) simulated image; (right) experimental image.
Fig. 3. Retrieved versus simulated AD for a 50 nm FWHM Gaussian spectrum and 5 mm FWHM Gaussian beam for a different AD modulus.
Fig. 4. Influence on calibration 
and retrieved error 
of various beam parameters: (left) beam size FWHM; (right) spectral bandwidth FWHM.
Fig. 5. Influence on calibration 
and retrieved error 
of various beam parameters: (left) astigmatism; (right) chromatic defocus.
Fig. 6. Schematic of the experimental setup implemented in the front end of the FLAME laser system. BS, beam splitter; CCD, charge-coupled device camera; L, achromatic doublet; MK, diffractive mask.
Fig. 7. AD as a function of the introduced misalignment 
. Experimental results (ADexp) compared with the 
Kostenbauder matrix formalism simulation (ADth) simulating a misaligned double-pass grating compressor.
Table 1. Influence of the beam and spectral shape.
View tableView in ArticleTable 1. Influence of the beam and spectral shape.
Beam shape Spectral shape $\eta$ ${\sigma}_{\rm err}\kern0.1em \left(\mu\hbox{rad/nm}\right)$ Gaussian Gaussian 1 0.018 Gaussian Flat-top 1 0.020 Square flat-top Gaussian 0.86 0.020 Square flat-top Flat-top 0.85 0.022
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M. Galimberti, F. G. Bisesto, M. Galletti. Innovative single-shot 2D pulse front tilt diagnostic[J]. High Power Laser Science and Engineering, 2021, 9(2): 02000e16
Paper Information
Category: Research Articles
Received: Nov. 19, 2020
Accepted: Dec. 24, 2020
Published Online: Apr. 29, 2021
The Author Email: M. Galimberti (marco.galimberti@stfc.ac.uk)
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