VULCAN and FLAME ultra-short pulses characterization by GROG algorithm

被引：2
作者：
Galletti, M. [1 ,2 ]
Coyle, C. [2 ]
Oliveira, P. [2 ]
Galimberti, M. [2 ]
Bisesto, F. G. [3 ]
Giulietti, D. [4 ,5 ]
机构：
[1] Univ Lisbon, Inst Super Tecn, GOLP IPFN, Ave Rovisco Pais, P-1049001 Lisbon, Portugal
[2] Rutherford Appleton Lab, Sci & Technol Facil Council, Cent Laser Facil, Harwell Sci & Innovat Campus, Didcot OX11 0QX, Oxon, England
[3] Ist Nazl Fis Nucl, Lab Nazl Frascati, Via Enrico Fermi 40, I-00044 Frascati, Italy
[4] Univ Pisa, Dept Phys, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
[5] Ist Nazl Fis Nucl, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
来源：
JOURNAL OF INSTRUMENTATION | 2019年 / 14卷
基金：
欧盟地平线“2020”; 英国工程与自然科学研究理事会;
关键词：
Lasers; Optics; Real-time monitoring; Software Engineering; LASER; INTENSITY; PHASE; RECONSTRUCTION; RETRIEVAL; ELECTRONS;
D O I：
10.1088/1748-0221/14/02/C02005
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The complete characterization of the laser pulse parameters was made using a new algorithmic method: GRenouille/FrOG (GROG), based on the 1D Conjugate Gradient Minimization Method. The purpose is, analyzing experimental FROG/GRENOUILLE traces, to accurately retrieve intensity and phase both in the temporal and spectral domain so as to completely characterize an ultra short high power laser pulse. This algorithm shows important features in the reconstruction of many different pulse classes. The GRENOUILLE traces of FLAME Probe line pulses (60 mJ, 70 fs, 10 Hz) were acquired in the FLAME Front End Area (FFEA) at the Laboratori Nazionali di Frascati (LNF), Instituto Nazionale di Fisica Nucleare (INFN). A FROG diagnostic is being developed in Central Laser Facility in RAL able to characterize the 100 J, 1.4 ps, 2 nm @ 1053.5 nm laser pulses in Target Area West (TAW).
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页数：9
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