Multi-petawatt laser facility fully based on optical parametric chirped-pulse amplification

Zeng, Xiaoming; Zhou, Kainan; Zuo, Yanlei; Zhu, Qihua; Su, Jingqin; Wang, Xiao; Wang, Xiaodong; Huang, Xiaojun; Jiang, Xiaolong; Jiang, Dongbin; Guo, Yong; Xie, Na; Zhang, Song; Wu, Zhaohui; Mu, Jie; Peng, Huizhen; Feng, Jing

doi:10.1364/ol.42.002014

Cited by 165 publications

(114 citation statements)

References 13 publications

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“…The technology of ultrafast laser sources nowadays makes it possible to generate laser pulses of femtosecond duration with peak powers of up to several PetaWatts (PW) [1][2][3]. The development of such laser sources, now available or under construction in several laboratories worldwide, is motivated by two main prospects.…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal structure of a petawatt femtosecond laser beam

et al. 2019

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The development of optical metrology suited to ultrafast lasers has played a key role in the progress of these light sources in the last few decades. Measurement techniques providing the complete E-field of ultrashort laser beams in both time and space are now being developed. Yet, they had so far not been applied to the most powerful ultrashort lasers, which reach the PetaWatt range by pushing the chirped pulse amplification (CPA) scheme to its present technical limits. This situation left doubts on their actual performance, and in particular on the peak intensity they can reach at focus. In this article we present the first complete spatio-temporal characterization of a PetaWatt femtosecond laser operating at full intensity, the BELLA laser, using two recently-developed independent measurement techniques. Our results demonstrate that, with adequate optimization, the CPA technique is still suitable at these extreme scales, i.e. it is not inherently limited by spatio-temporal couplings. We also show how these measurements provide unprecedented insight into the physics and operation regime of such laser systems.

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Section: Introductionmentioning

confidence: 99%

Spatio-temporal structure of a petawatt femtosecond laser beam

et al. 2019

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“…Using the chirped pulse amplification (CPA) technique, ultrashort‐pulse laser sources with durations on the femtosecond time scale can produce multi‐terawatt and even petawatt power . These laser pulses can be focused to intensities well above 10 18 W/cm 2 , from which an electron will acquire a quiver velocity approaching the speed of light; that is, the electron motion in the laser fields becomes highly relativistic and non‐linear.…”

Section: Introductionmentioning

confidence: 99%

Simulation of a chirped femtosecond relativistic laser pulse interaction with underdense plasma by using a hydrodynamic approach

Zhu

et al. 2019

Contributions to Plasma Physics

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A chirped laser pulse indicates that the laser frequency changes over the duration of the pulse: a positively (negatively) chirped pulse implies that the laser frequency increases (decreases) with time. In this paper, we use a simplified, fully relativistic hydrodynamic approach to simulate the influence of chirp on the propagation of a femtosecond relativistic laser pulse in underdense plasma. Based on this simplified cold-fluid model, the influence of chirp on the main dynamics of the laser pulse, such as self-steepening, red-shift in the leading edge, variation of the frequency chirp, and the generated wakefields can be studied self-consistently. The simulation results show that a pulse with a positive chirp results in a larger increment in the intensity parameter a 0 when propagating a certain distance into an underdense plasma compared with an un-chirped and a negatively chirped pulse, which is largely because of a much greater forward shift of the peak amplitude and more severe pulse self-steepening effect due to the frequency red-shift at the leading edge when exciting a plasma wave. The ponderomotive force, which relates to the first-order differential of the laser pulse intensity envelope, is expected to be stronger for a positively chirped pulse because of its steeper leading edge and larger intensity parameter a 0 .As a result, the wakefield driven by the positively chirped laser pulse is more intense than that driven by an un-chirped and a negatively chirped laser pulse, which is confirmed by our self-consistent hydrodynamic simulation. K E Y W O R D Schirp, femtosecond relativistic laser, plasma, wakefield INTRODUCTIONUsing the chirped pulse amplification (CPA) technique, ultrashort-pulse laser sources with durations on the femtosecond time scale can produce multi-terawatt and even petawatt power. [1][2][3] These laser pulses can be focused to intensities well above 10 18 W/cm 2 , [4] from which an electron will acquire a quiver velocity approaching the speed of light; that is, the electron motion in the laser fields becomes highly relativistic and non-linear. Thus, these laser pulses are called relativistic femtosecond laser pulses and have great applications in high energy density science, such as energetic electron acceleration, [5] ion acceleration, [6] attosecond pulses generation, [7,8] positron beams for laboratory astrophysics, [9] and so on. These applications require long laser

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“…Kékkel jelöltem a hibrid, optikai parametrikus (OPCPA) és Ti:Sa erősítőkön alapú rendszereket: 6 (APOLLON) [11], 7 [12], 9 (ELI-Beamlines HAPLS) [13], 10 (ELI-ALPS HF-2PW) [14], 13 (ELI-ALPS HF-100) [14]. Végül két optikai parametrikus erősítésen (OPCPA) alapú rendszert is felvázoltam, ezeket zölddel jelöltem: 8 [15], és 12 (ELI-ALPS SYLOS 1) [16].…”

Section: Bevezetésunclassified

“…Az OPCPA technológia az ultranagy intenzitású impulzusok előállítását is lehetővé teheti. Több nagyméretű projekt célja az ezen a sémán alapuló, PW csúcsteljesítményű impulzusok generálására alkalmas architektúra megvalósítása, bizonyos esetekben akár hibrid módon a Ti:Sa erősítés felhasználásával [12,15]. Az OPCPA rendszerek esetén a hangolhatóság mellett fontos előny lehet, hogy az OPA folyamat során a pumpaenergia nem tárolódik az erősítő közegben, így a disszipált hő mennyisége a Ti:Sa erősítőkhöz viszonyítva minimális értékű.…”

Section: Ii23 Optikai Parametrikus Erősítőkunclassified

Ultrarövid impulzusok erősítése következő generációs titán-zafír lézerrendszerekben

Nagymihály

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II.3. ábra Vivőhullám és a burkoló egy 5 fs félértékszélességű intenzitásburkolóval rendelkező impulzus esetén. A burkoló maximuma és a vivőhullám legközelebbi maximuma közötti időbeli különbség arányos a CEP értékével. a. b. c.IV.4.4. ábra Egycsatornás (a) és kétcsatornás (b) hűtés kétdimenziós modelljei a pumpanyaláb útvonalának feltüntetésével. AH áramlás homogenizáló elemet, EKP1 és EKP2 egycsatornás központi peremet, KKP1 és KKP2 kétcsatornás központi peremet jelölnek.Mivel az SST modell megoldása ilyen méretű geometriára még kétdimenziós esetben is magas számítási igényű (amennyiben a kellő sűrűségű hálózás legenerálható, > 24 óra), valamint konvergencia-Ti:Sa AH Kimenet Pumpa impulzusok Bemenet EKP2 EKP1 Ti:Sa AH Szimmetriatengely KKP2 KKP1 a. b. Pumpa impulzusok Kimenet Bemenet

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Multi-petawatt laser facility fully based on optical parametric chirped-pulse amplification

Cited by 165 publications

References 13 publications

Spatio-temporal structure of a petawatt femtosecond laser beam

Spatio-temporal structure of a petawatt femtosecond laser beam

Simulation of a chirped femtosecond relativistic laser pulse interaction with underdense plasma by using a hydrodynamic approach

Ultrarövid impulzusok erősítése következő generációs titán-zafír lézerrendszerekben

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