golf. summary group overview operating laser systems research and development outlook

GOLFGOLF

SummarySummary

Group overviewGroup overview

Operating laser systemsOperating laser systems

Research and Development Research and Development

OutlookOutlook


Directeur Ph. Balcou (DR)Adjoints au Directeur

H. Bachau (DR) et V. Tikhonchuk (PR)

R. Bouilleau (AI)A. Filippov (IE)A. LeGoff (AI)L. Merzeau (T)D. Briand (T)

Loic Baucher (IE)

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)

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)

Équipes de Recherche

Équipes de Recherche

Technologie et supportTechnologie et support

Harmoniques XUV

et applications

P. Martin (CR)H. Bachau (DR)

E. Constant (CR)B. Fabre (MC)G. Geoffroy*

Y. Mairesse (CR)E. Mevel (PR)

Groupe optique etLasers femto

E. Cormier (MC)D. Descamps*C. Medina (AI)

S. Montant*S. Petit (IR)

Groupe PEPSI

L. Hallo*C. Fourment*G. Geoffroy*

G. Malka (MC)Ph. Alasimone (T)

Secrétariat / GestionSecrétariat / Gestion

S. Aussel (T)M. Mondolfi (T)

F. Catelle***

M à D AlphaNov : J. Lopez (IR)

Group members: permanent staffGroup members: permanent staff

Eric CormierA. Prof., HDR

Dominique DescampsCEA Engineer

Capucine MédinaCNRS AI

Sébastien Montant CEA Engineer

Stéphane PetitCNRS IR

Group members : Postdocs and Phd Students Group members : Postdocs and Phd Students

Loic Meignien

Johan Boullet

François Labaye

Coralie Fourcade-Dutin Marie-Christine Nadeau

Julien Nillon Guillaume Machinet

Christophe Hazera

Group responsibilitiesGroup responsibilities

I) Operate and I) Operate and develop the laser develop the laser infrastructuresinfrastructures

II) Research and development in optics II) Research and development in optics and lasers: and lasers:

ultrafast and ultrashort sources ultrafast and ultrashort sources

Group StructureGroup Structure

Laser systems maintenance and evolutionLaser systems maintenance and evolution

Research and developments in optics and lasersResearch and developments in optics and lasers

Dominique

70 %

30 %

Capucine

80 %

20 %

Stéphane

70 %

30 %

Eric

50 %

Sébastien

100 %

Man power : 2.2

Man power (permanent): 2.3

Postdocs (2)

And

Phd (6)

Total man power : 10.3

SummarySummary


Laser infrastructuresLaser infrastructures


OutlookOutlook


Group missionsGroup 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 beamtimeHuman resources and beamtime

2005 2006 2007 2008 20090

5

10

15

20

25

30

35

40

45

Bea

mtim

e (w

eeks

)

Years

Aurore Eclipse 100 Hz Eclipse 10 Hz

2005 2006 2007 2008 20090

1

2

3

4

Ma

np

ow

er

(nu

mb

er

of

pe

op

le)

Years

assistant engineer researcher

Move to new building

Aurore upgrade(2 beams)

Eclipse operating(2 beams at 10 Hz)

Eclipse underconstruction

Aurore facilityAurore facility

PC Picker1 nJ-270 ps

PC CleanerTi:sapphire

oscillator 20 fs

Nd:YLF1 kHz 15W

Regenerativeamplifier

1.8 mJ

180 ps

7 mJ-35 fs 1 kHz

Öffner strecher

Nd:YLF1 kHz 29W

Nd:YLF1 kHz 29W

Nd:YLF1 kHz 29W

Nd:YLF1 kHz 29W

7 mJ-35 fs 1 kHz

Cryogenic multipassamplifier

Laser specifications:Laser specifications:

- Repetition rate : Repetition rate : 1 kHz1 kHz- Bandwidth : - Bandwidth : 30 nm FWHM @ 30 nm FWHM @ 810 nm810 nm - Pulse duration : - Pulse duration : 35 fs35 fs FWHM FWHM- Energy : - Energy : 2 x 7 mJ2 x 7 mJ- Temporal contrast : - Temporal contrast : Prepulse at 8 ns ~ Prepulse at 8 ns ~ 6 106 10-8-8

ASE level ~ ASE level ~ 3 103 10-8-8 - Intensity on target : - Intensity on target : 7 107 101616 W/cm W/cm22 (with f=200 mm) (with f=200 mm)- Energy stability : - Energy stability : ± ± 1,4% rms1,4% rms shot to shot shot to shot

22 mJ 1 kHz

TOPAS (1.2-2.2 m)

600 J-50 fs 1 kHz

Compressor Compressor

Laser room +

3 Experimental areas

Eclipse facilityEclipse facility

Laser specifications:Laser specifications:

- Repetition rate : Repetition rate : 10 Hz10 Hz- Bandwidth : - Bandwidth : 28 nm FWHM @ 28 nm FWHM @ 812 nm812 nm - Pulse duration : - Pulse duration : 40 fs40 fs FWHM FWHM- Energy : - Energy : 170 mJ170 mJ- Temporal contrast : - Temporal contrast : Prepulse at 12 ns ~ Prepulse at 12 ns ~ 4 104 10-9-9

ASE level ~ ASE level ~ 1010-7-7 - Intensity on target : - Intensity on target : 2 102 101818 W/cm W/cm22 (with f=250 mm) (with f=250 mm)- Energy stability : - Energy stability : ± ± 5,1% rms5,1% rms shot to shot shot to shot

Multipass amplifier

PC cleanerTi: sapphire

oscillator 20 fs

Nd:YAG100Hz 4W

Regenerative amplifier

Multipassamplifier

1 mJ8 mJ

Nd:YAG10Hz 10 W

300 mJ

10 Hz

Öffner strecher

PC picker1 nJ-270 ps

Laser room +

3 Experimental areas

5 mJ-40 fs 100 Hz

170 mJ*-40 fs 10 Hz

Compressor in air

Compressorunder vacuum

*present configuration 2 beams of 85 mJ

GOLF impact on the other groups GOLF impact on the other groups

TW systems are the heart of the experimental research TW systems are the heart of the experimental research at CELIA at CELIA We manage now to provide distributed beam lines We manage now to provide distributed beam lines allowing allowing 5 to 6 experiments5 to 6 experiments in parallel in parallelHigh productivity of the experimental groups relies on High productivity of the experimental groups relies on our ability to reliably run the systems on a daily basisour ability to reliably run the systems on a daily basisFuture CELIA laser sources will emerge from our Future CELIA laser sources will emerge from our reseachreseach

High implication of 3 out of the 5 members of the groupHigh implication of 3 out of the 5 members of the group

High pressure on the group members

SummarySummary



Research and DevelopmentResearch and Development

OutlookOutlook

Research areas and strategyResearch areas and strategy

FiberFiber lasers and amplifiers:

fs, ps, ns and cw

BulkBulk Ti:Sapphire and

new materials

Non linearNon linear optics:OPA/OPCPA

Post-compression

DiagnosticsDiagnostics:Spider, FROG,

wavefront, contrast

ApplicationsApplications:HHG @ 1 MHzExternal Fabry Pérot cavity enhancementUltrafast micro machiningTunable IR sources (600nm – 2.5 µm)Tunable HHGHighly non-linear fiber characterization …

Future CELIA facilitiesFuture CELIA facilities

Research axis Research axis

Ultrashort pulsesUltrashort pulses Ultra high repetition rateUltra high repetition rate



PostCompres.

OPCPA Fiber lasers

fs

FP Cavity

psns cw

bulk



PostCompres.

OPCPA

10 m

J 10

fs

Low

ene

rgy

Oct

ave

span

.

10fs

100

kHz

CE

P s

elf

stab

.

Fiber lasers

fs

FP Cavity

psns cw

bulk

HH

G

µ m

achi

ning

30 W

270

fs

100

W,9

77nm

1mJ,

977n

m

X-r

ay

Pol

ar. -

ray



PostCompres.

OPCPA

10 m

J 10

fs

Low

ene

rgy

Oct

ave

span

.

10fs

100

kHz

CE

P s

elf

stab

.

Fiber lasers

fs

FP Cavity

psns cw

bulk

HH

G

µ m

achi

ning

30 W

270

fs

100

W,9

77nm

1mJ,

977n

m

X-r

ay

Pol

ar. -

ray

WR

Int.

Col

., W

R

Pat

.

WR

, P

at.

WR

, P

at.

Indu

s.

Int.

Col

.

Indu

s.

Indu

s.

WR



PostCompres.

OPCPA

10 m

J 10

fs

Low

ene

rgy

Oct

ave

span

.

10fs

100

kHz

CE

P s

elf

stab

.

Fiber lasers

fs

FP Cavity

psns cw

bulk

HH

G

µ m

achi

ning

30 W

270

fs

100

W,9

77nm

1mJ,

977n

m

X-r

ay

Pol

ar. -

ray

WR

Int.

Col

., W

R

Pat

.

WR

, P

at.

WR

, P

at.

Indu

s.

Int.

Col

.

Indu

s.

Indu

s.

WR

Spin off company

Product line of Amplitude Systèmes

Societal applications

#1 High energy post-compression using gas ionization#1 High energy post-compression using gas ionization

Gas ionization =Gas ionization = plasma creation : plasma creation : time evolution of free electron density (ne)time evolution of free electron density (ne)

Temporal phase :Temporal phase :new frequenciesnew frequencies

1/ 20

0

( )2( ) (1 ) *e

c

n tt t L

n

-150 -100 -50 0 50 100 150600

700

800

Wavelength

Wav

elen

gth

(n

m)

Time (fs)

Broadened and blue-shifted spectrum

ADK model P=1 mbar HeI= 2.1015W/cm2 (40 fs) L=40 cm

-150 -100 -50 0 50 100 1500

1

2

3

Intensity

Inte

nsit

y (

101

5 W/c

m2 )

Time (fs)

0

1

2

3

Ele

ctr

on

den

sit

y (

101

6 e/c

m3 )

ne

0%

100%

30fs

ne=2.4 1016 e/cm3

#1 High energy post-compression using gas ionization #1 High energy post-compression using gas ionization

0 1 2 3 4 5 6 7 8 90

5

10

15

20

25

30

Transmitted energy

Out

put e

nerg

y (m

J)

Helium pressure (mbar)

0

5

10

15

20

25

30

35

40 Pulse duration

FW

HM

of p

ulse

dur

atio

n (f

s)

Coupling efficiency 36%

He gas Ein = 70 mJ

Eout= 25.6 mJ (without gas)

Propagation in the capillary (Φcapillary = 420 µm)

40cm

Intensity in the capillary : 2 1015 W/cm2

Spectrum at different He pressure Output energy and pulse duration

11.4 fs11.4 fs

13.7 mJ13.7 mJ

650 700 750 800 8500,0

0,5

1,0

1,5

0 mbar 1 mbar 3 mbar 8 mbar

Inte

nsi

ty (

arb

.u.)

Wavelength (nm)

Coll. XUV Group

Coll. XUV Group

#2 Ultra high repetition rate HHG#2 Ultra high repetition rate HHG

Up to 30 WUp to 30 W

280 fs280 fs

100 KHZ – 1 MHz100 KHZ – 1 MHz

Fiber CPA systemFiber CPA system

Gas jetGas jet

XUV gratingXUV gratingCCD CCD Camera

Camera

Fiber laser systemFiber laser system Tight focusingTight focusing chamber chamber


33.2 nm

1 MHz68.7 nm

FWHM = 280 fs

M2 = 1.3

100 kHz

Rod type fibers


First demonstration of HHG driven by a FCPA systemCoherent radiation down to 33 nm (40 eV) XUV pulses at rep. rate up to 1 MHz System is tunable from 100 kHz to 1 MHzSystem perfectly adapted for pump probe experiments

Move synchrotron based applications to table top

experimentsRevisit the Ti:sapph based HHG

experiments at MHz repetition rates

Patent pending

Patent pending

#3 #3 Few cycles pulses at 100 KHzFew cycles pulses at 100 KHz

Strong driving laser:

Yb Fiber

Post-compressionCapillary

= 50 fs

OPA/NOPA/OPCPA

= 450-1000 nm E = 0.01 – 100 µJ

= 200 nm

< 10 fs

High repetition rate High intensityFew cycle pulsesCEP stabilized

Fiber pumped OPCPA


CEP stabilized

Modelocked source

Signal stretcher

Yb Fiber CPA pump

Parametric amplifiers

Compressor

25 pJ @1030 nm

60%

25 pJ @1030 nm

60%

Rainbow

• 7 fs Ti:Sapph Oscillator• 300 nm @ -10dB• CEP stabilized

Signal Pump

20 pJ @ 1030


• Spectrum • Duration

68 nm amplified bandwidth @ 720 nm11 fs (3.6 cycles)

-40 -30 -20 -10 0 10 20 30 40

0.0

0.2

0.4

0.6

0.8

1.0

field = 10 fs

Auto

corr

ela

tion

time (fs)

autoco = 14,1 fs

fs

field

fs

650 700 750 800 850 900

0

50

100

150

200

250

300

Sp

ectr

e

(a.u

.)

Wavelength (nm)

Experiment Gaussian Fit

= 68 nm

nm

SummarySummary




OutlookOutlook


Aurore (1 KHz)Aurore (1 KHz) Increase average power up to 35 W (additional Ti:sapphire amplifier)

3 x 8 mJ or 1 x 25 mJ3 x 8 mJ or 1 x 25 mJ (2010) Reduce pulse duration down to 25 fs (new oscillator + spectral filter +

dazzler)1 TW – 1 kHz1 TW – 1 kHz laser (2010)

Few cycle pulses at 2 µm using post-compression of TOPAS system (2010)

Eclipse (10 Hz)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)

Research and DevelopmentsResearch and Developments

High energy CEP stabilized OPCPAHigh energy CEP stabilized OPCPA

High brightness optical pumping of YbHigh brightness optical pumping of Yb

CEP stabilized few cycles at 100 KHz CEP stabilized few cycles at 100 KHz (Solstice)(Solstice)

Fiber lasers at 2 µmFiber lasers at 2 µm

Passive FP cavitiesPassive FP cavities

X-rays and X-rays and -rays via Compton scattering -rays via Compton scattering

-ray production-ray production

e-

h

(1) Low emittance e- source

ATF @ KEK

(2) High finesse FPcavity

4-mirror @ LAL

(3) High power laser

fiber laser @ CELIA

-ray production-ray production54 m

30 m

Beam Energy

→ 1.28GeV

Beam Size

　→ 100μm×10μm

Emittance 　→

1.0x10-9 rad.m

1.0x10-11 rad.m

(Ultra Low !!)

Fiber laser and FP cavity

Technology transferTechnology transfer

Group overview (extra)Group overview (extra)

Group members turn overGroup members turn over

ContractsContracts

Total :Total : 3 M€ 3 M€

Scientific productionScientific production

Active permanent man power dedicated to Active permanent man power dedicated to research: 2.3research: 2.3

ACL / man power = 17 papers / per person

golf. summary group overview operating laser systems research and development outlook

Documents

khz bandwidth

construction slide

khz topas

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khz compressor laser

laser systems research

development outlook

group members