Extreme Light Infrastructure in Romania progress Daniel URSESCU

Design Criteria • dual front-end (only one running at a time, 10 -15 fs

Preliminary: ELI Nuclear Building Ground floor: 2 x front-end laser and 3 x amplifiers

Laser Architecture 2 x. FRONT END AMPLIFIERS DPSSL-pumped OPCPA Ti: Sapphire pumped by ns

Ground floor building description 3 x Amplification chains 2 x Front ends Technical rooms

First floor building description Technical rooms Pump lasers area Technical infrastructure area

Interaction Areas High energy compressors Beam delivery Front end target areas High energy target

Technical issues: laser system • final pulse duration (>15 fs) • Spatial and temporal

Technical issues: experiments White book for experiments at ELI-NP Definition and calculation of the

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Extreme Light Infrastructure in Romania: progress Daniel URSESCU Technical contact point for ELI in Romania INFLPR, Magurele, Romania

Design Criteria • dual front-end (only one running at a time, 10 -15 fs @100 m. J) • 3 arms (energy up to 300 J each, before compression) • separate room for pump lasers (first floor) • high rep. rate experimental area (underground 1) and high energy experimental area (underground 2) • extendable experimental area • parallel experiments operation

Preliminary: ELI Nuclear Building Ground floor: 2 x front-end laser and 3 x amplifiers Underground 1 and 2: experimental area First floor: pump lasers

Laser Architecture 2 x. FRONT END AMPLIFIERS DPSSL-pumped OPCPA Ti: Sapphire pumped by ns Nd: YAG & Nd: Glass lasers FE 1: 10 -20 m. J BW > 120 nm TCP = 50 ps 0. 1 -1 k. Hz C > 10^12 FE 2: > 100 m. J BW > 80 nm TCP= 1 -2 ns 10 -100 Hz C > 10^12 A 1 + A 2 A 3 +A 4+ A 5 BOOSTERS > 4 J, 10 Hz POWER AMPLIFIERS >300 J A 1 + A 2 COMPRESSOR >200 200 JJ BEAM TRANSPORT IN VACUUM COMPRESSOR >200 JJ BEAM TRANSPORT IN VACUUM A 3 +A 4+ A 5 BOOSTERS > 4 J, 10 Hz POWER AMPLIFIERS >300 J A 1 + A 2 A 3 +A 4+ A 5 BOOSTERS > 4 J, 10 Hz DIAGNOSTICS POWER AMPLIFIERS >300 J TARGETS Φ = 1 -20 μm TEST COMPRESSOR TARGETS DIAGNOSTICS IΣ = 3 x 1023 -24 W/cm 2 BW – Spectral bandwidth, C – intensity contrast, TCP- chirped pulse duration, TC – re-compressed pulse duration, Φ – focused laser beam diameter, IΣ – intensity on target

Ground floor building description 3 x Amplification chains 2 x Front ends Technical rooms Adaptive optics, beam transport and diagnostics

First floor building description Technical rooms Pump lasers area Technical infrastructure area

Interaction Areas High energy compressors Beam delivery Front end target areas High energy target areas 3 PW high rep. rate target areas

Technical issues: laser system • final pulse duration (>15 fs) • Spatial and temporal contrast • coherent beam combination

Technical issues: experiments White book for experiments at ELI-NP Definition and calculation of the source terms for the experiments in the White Book Design of the target areas (including shielding)

Thank you for attention!