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GOLF.

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Presentation on theme: "GOLF."— Presentation transcript:

1 GOLF

2 Operating laser systems Research and Development Outlook
Summary Group overview Operating laser systems Research and Development Outlook

3 Group overview C. Fourment* Directeur Ph. Balcou (DR)
Adjoints au Directeur H. Bachau (DR) et V. Tikhonchuk (PR) Secrétariat / Gestion Groupe PEPSI L. Hallo* C. Fourment* G. Geoffroy* G. Malka (MC) Ph. Alasimone (T) Technologie et support S. Aussel (T) M. Mondolfi (T) F. Catelle*** R. Bouilleau (AI) A. Filippov (IE) A. LeGoff (AI) L. Merzeau (T) D. Briand (T) Loic Baucher (IE) Équipes de Recherche Plasmas chauds et denses V. Tikhonchuk (PR) G. Schurtz* J. Breil* B. Dubroca** J.-L. Feugeas* P. Nicolai* M. Olazabal* L. Hallo* P.-H. Maire* X. Ribeyre* E. d’Humières (MC) Groupe optique et Lasers femto E. Cormier (MC) D. Descamps* C. Medina (AI) S. Montant* S. Petit (IR) Sources X, Plasmas et ions H. Jouin (PR) F. Dorchies (CR) C. Stenz (PR) C. Fourment* S. Hulin* O. Peyrusse* S. Jéquier (MC) B. Pons (PR) J. Santos (MC) Harmoniques XUV et applications P. Martin (CR) H. Bachau (DR) E. Constant (CR) B. Fabre (MC) G. Geoffroy* Y. Mairesse (CR) E. Mevel (PR) M à D AlphaNov : J. Lopez (IR)

4 Group members: permanent staff
Eric Cormier A. Prof., HDR Dominique Descamps CEA Engineer Capucine Médina CNRS AI Sébastien Montant CEA Engineer Stéphane Petit CNRS IR

5 Group members : Postdocs and Phd Students
Coralie Fourcade-Dutin Marie-Christine Nadeau Johan Boullet Julien Nillon Guillaume Machinet Loic Meignien François Labaye Christophe Hazera

6 Group responsibilities
I) Operate and develop the laser infrastructures II) Research and development in optics and lasers: ultrafast and ultrashort sources

7 Laser systems maintenance and evolution
Group Structure Laser systems maintenance and evolution Man power : 2.2 Dominique 70 % 30 % Capucine 80 % 20 % Stéphane 70 % 30 % Research and developments in optics and lasers Eric 50 % Sébastien 100 % Postdocs (2) And Phd (6) Man power (permanent): 2.3 Total man power : 10.3

8 Laser infrastructures Research and Development Outlook
Summary Group overview Laser infrastructures Research and Development Outlook

9 Laser infrastructures
Group missions Daily operation of Aurore (1 kHz) and Eclipse (10 Hz) laser facilities Install online diagnostics for permanent monitoring Upgrade the laser performances (COLA project) Access: National (5 weeks/year) European (8 weeks/year) Human resources and beamtime Eclipse operating (2 beams at 10 Hz) Eclipse under construction Aurore upgrade (2 beams) Move to new building

10 Laser specifications:
Aurore facility Öffner strecher Nd:YLF 1 kHz 15W Nd:YLF 1 kHz 29W Nd:YLF 1 kHz 29W Nd:YLF 1 kHz 29W Nd:YLF 1 kHz 29W PC Picker 1 nJ-270 ps Ti:sapphire oscillator 20 fs Regenerative amplifier 1.8 mJ 180 ps Cryogenic multipass amplifier PC Cleaner 22 mJ 1 kHz Laser specifications: Compressor Compressor Repetition rate : 1 kHz - Bandwidth : 30 nm 810 nm - Pulse duration : 35 fs FWHM - Energy : 2 x 7 mJ - Temporal contrast : Prepulse at 8 ns ~ ASE level ~ - Intensity on target : W/cm2 (with f=200 mm) - Energy stability : ± 1,4% rms shot to shot 7 mJ-35 fs 1 kHz 7 mJ-35 fs 1 kHz TOPAS ( mm) 600 mJ-50 fs 1 kHz Laser room + 3 Experimental areas

11 Compressor under vacuum
Eclipse facility Öffner strecher Nd:YAG 100Hz 4W Nd:YAG 10Hz 10 W Multipass amplifier PC picker 1 nJ-270 ps Multipass amplifier 1 mJ Ti: sapphire oscillator 20 fs 8 mJ Regenerative amplifier 300 mJ 10 Hz PC cleaner Laser specifications: Compressor in air Compressor under vacuum Repetition rate : 10 Hz - Bandwidth : 28 nm 812 nm - Pulse duration : 40 fs FWHM - Energy : mJ - Temporal contrast : Prepulse at 12 ns ~ ASE level ~ 10-7 - Intensity on target : W/cm2 (with f=250 mm) - Energy stability : ± 5,1% rms shot to shot 5 mJ-40 fs 100 Hz 170 mJ*-40 fs 10 Hz Laser room + 3 Experimental areas *present configuration 2 beams of 85 mJ

12 GOLF impact on the other groups
TW systems are the heart of the experimental research at CELIA We manage now to provide distributed beam lines allowing 5 to 6 experiments in parallel High productivity of the experimental groups relies on our ability to reliably run the systems on a daily basis Future CELIA laser sources will emerge from our reseach High implication of 3 out of the 5 members of the group High pressure on the group members

13 Laser infrastructures Research and Development Outlook
Summary Group overview Laser infrastructures Research and Development Outlook

14 Research areas and strategy
Bulk Ti:Sapphire and new materials Fiber lasers and amplifiers: fs, ps, ns and cw Non linear optics: OPA/OPCPA Post-compression Future CELIA facilities Diagnostics: Spider, FROG, wavefront, contrast Applications: 1 MHz External Fabry Pérot cavity enhancement Ultrafast micro machining Tunable IR sources (600nm – 2.5 µm) Tunable HHG Highly non-linear fiber characterization

15 Ultra high repetition rate
Research axis Ultrashort pulses Ultra high repetition rate

16 Ultra high repetition rate
Research axis Ultrashort pulses Ultra high repetition rate Post Compres. OPCPA Fiber lasers bulk fs ns cw ps FP Cavity

17 Ultra high repetition rate
Research axis Ultrashort pulses Ultra high repetition rate Post Compres. OPCPA Fiber lasers bulk fs ns cw ps FP Cavity 10 mJ 10 fs Low energy Octave span. CEP self stab. 10fs 100kHz HHG µ machining 30 W 270 fs 100 W,977nm 1mJ,977nm X-ray Polar. g-ray

18 Ultra high repetition rate
Research axis Ultrashort pulses Ultra high repetition rate Post Compres. OPCPA Fiber lasers bulk fs ns cw ps FP Cavity 10 mJ 10 fs Low energy Octave span. CEP self stab. 10fs 100kHz HHG µ machining 30 W 270 fs 100 W,977nm 1mJ,977nm X-ray Polar. g-ray WR Int. Col., WR WR Pat. Indus. Indus. WR, Pat. WR, Pat. Indus. Int. Col.

19 Ultra high repetition rate
Research axis Product line of Amplitude Systèmes Ultrashort pulses Ultra high repetition rate Post Compres. OPCPA Fiber lasers bulk fs ns cw ps Societal applications FP Cavity 10 mJ 10 fs Low energy Octave span. CEP self stab. 10fs 100kHz HHG µ machining 30 W 270 fs 100 W,977nm 1mJ,977nm X-ray Polar. g-ray WR Int. Col., WR WR Pat. Indus. Indus. WR, Pat. WR, Pat. Indus. Int. Col. Spin off company

20 #1 High energy post-compression using gas ionization
Gas ionization = plasma creation : time evolution of free electron density (ne) Temporal phase : new frequencies 0% 100% 30fs ne= e/cm3 ADK model P=1 mbar He I= W/cm2 (40 fs) L=40 cm Broadened and blue-shifted spectrum

21 #1 High energy post-compression using gas ionization
Propagation in the capillary (Φcapillary = 420 µm) He gas Ein = 70 mJ Eout= 25.6 mJ (without gas) Coupling efficiency 36% 40cm Intensity in the capillary : W/cm2 Spectrum at different He pressure Output energy and pulse duration 13.7 mJ 11.4 fs Coll. XUV Group

22 #2 Ultra high repetition rate HHG
Gas jet XUV grating Fiber CPA system CCD Camera Fiber laser system Tight focusing chamber Up to 30 W 280 fs 100 KHZ – 1 MHz

23 #2 Ultra high repetition rate HHG
FWHM = 280 fs M2 = 1.3 Rod type fibers 33.2 nm 1 MHz 100 kHz 68.7 nm

24 #2 Ultra high repetition rate HHG
First demonstration of HHG driven by a FCPA system Coherent radiation down to 33 nm (40 eV) XUV pulses at rep. rate up to 1 MHz System is tunable from 100 kHz to 1 MHz System perfectly adapted for pump probe experiments Move synchrotron based applications to table top experiments Revisit the Ti:sapph based HHG experiments at MHz repetition rates Patent pending

25 #3 Few cycles pulses at 100 KHz
Strong driving laser: Yb Fiber High repetition rate High intensity Few cycle pulses CEP stabilized Post-compression Capillary Dt = 50 fs OPA/NOPA/OPCPA l = nm E = 0.01 – 100 µJ Dl = 200 nm Dt < 10 fs Fiber pumped OPCPA

26 #3 Few cycles pulses at 100 KHz
CEP stabilized Modelocked source Signal stretcher Yb Fiber CPA pump Parametric amplifiers Compressor 20 pJ @ 1030 7 fs Ti:Sapph Oscillator dB CEP stabilized Rainbow Signal Pump

27 #3 Few cycles pulses at 100 KHz
Spectrum Duration Dt field = 10 fs 14.1 fs Dl = 68 nm 68 nm amplified 720 nm 11 fs (3.6 cycles)

28 Laser infrastructures Research and Development Outlook
Summary Group overview Laser infrastructures Research and Development Outlook

29 Laser infrastructures
Aurore (1 KHz) Increase average power up to 35 W (additional Ti:sapphire amplifier) 3 x 8 mJ or 1 x 25 mJ (2010) Reduce pulse duration down to 25 fs (new oscillator + spectral filter + dazzler) 1 TW – 1 kHz laser (2010) Few cycle pulses at 2 µm using post-compression of TOPAS system (2010) Eclipse (10 Hz) Improve energy stability (stabbler) (2010) Temporal contrast enhancement up to 1010 (XPW filter+double CPA) (2012) Reduce pulse duration down to 30 fs (spectral filter + Dazzler) (2012)

30 Research and Developments
High energy CEP stabilized OPCPA High brightness optical pumping of Yb CEP stabilized few cycles at 100 KHz (Solstice) Fiber lasers at 2 µm Passive FP cavities X-rays and g-rays via Compton scattering

31 g-ray production (3) High power laser fiber CELIA hn g e- (2) High finesse FP cavity LAL Low emittance e- source KEK

32 Fiber laser and FP cavity
g-ray production Fiber laser and FP cavity 54 m Beam Energy → 1.28GeV Beam Size  → 100μm×10μm Emittance → 1.0x10-9 rad.m 1.0x10-11 rad.m (Ultra Low !!) 30 m

33 Technology transfer

34 Group overview (extra)
Group members turn over

35 Contracts Total : 3 M€

36 Scientific production
Active permanent man power dedicated to research: 2.3 ACL / man power = 17 papers / per person


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