High Harmonic Generation (HHG)

ELI Beamlines

The HHG is a kHz source of ultra-short pulses in the EUV to soft X-rays spectral range. Due to the interaction of noble gases atoms with a strong laser field of 10^15 W/cm2, the emitted electrons will be accelerated and then rescattered to parent atoms to generate radiation of short wavelength in attosecond bursts repeating every laser cycle.

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Laser-based light source parameters

High Harmonic Generation

Source type

HHG

Fluctuations of the peak photon energy / central wavelenght

Depends on L1 laser fluctuations

Beam shape

Gaussian

Pulse duration FWHM

20 [fs]

Polarisation

Circular, Elliptical

Other polarisation

linear (later - circular, elliptical)

Pulse repetition rate

1000 [Hz]

Note

All HHG data are shown in a separate document called "HHG-data".

- ELips end-station: No possibility to connect external end station for ELips. Controle Software type: Open source. Data output format: txt. Data output type: cvs. Softwares for data analysis: external Transmission and Ellipsometry are the techniques for the ELips chamber. ELips chamber will be available for the users beginning of 2019.

- MAC chamber: No possibility to connect external end station. MAC will be available on September 2018.

Additional Lightsources

HHG

Beam shape

Gaussian

Optics

HHG-optics

Angle Of Incidence Of Light On Sample

Straight beam

Diagnostics

Spectrometer, X-ray camera, XUV photodiode

Monochromator

Yes

Endstations or Setup

ELips

Detectors Available

Andor iKon-L SO

Endstation Operative

Yes

Sample

Sample Type

Other: Solid state wafers

Mounting Type

Glue by silver paint

Required Sample Size

X = 10000 [um], Y = 10000 [um], Z = 500 [um]

Manipulator or Sample stage

Degrees Of Freedom

Cradles

Sample Environment

Pressure (min)

1 * 10^-7 [mbar]

Temperature

20 - 450 [K]

Magnetic Fields

DC Fields

Magnetic head -> 1.5 T at the sample

MAC chamber

Microscopes

In-line microscope for imaging HHG focal spot.

Base Pressure

1 * 10^-8 [mbar]

Detectors Available

MCPs and Cameras

Sample

Sample Type

Other: MAC chamber is mainly for samples in gas phase – aerosols, clusters. Sample delivery systems: • GDVN injector • Flat sheet jet • Cluster source

Mounting Type

It is possible to use a solid sample. A motorised xyzzy and rotation manipulator is available.

Manipulator or Sample stage

Positioning Precision

X = 150 [nm], Y = 150 [nm], Z = 75 [nm]

Range Of Movement

X = 100 [mm], Y = 100 [mm], Z = 50 [mm]

Sample Environment

Temperature

100 - 300 [K]

Sample Holders

Type

For solid sample these holders are available:
Xyz stepper stage
Xyz+rotation piezo stage

Description

Xyz + rotation around z axis

Detectors

Andor iKon-L SO

Type

Andor iKon-L SO

Passive or Active (Electronics)

Active

Detection

Detected Particle

Photon

HHG-detectors

Type

Spectrometer, X-ray camera, XUV photodiode

Passive or Active (Electronics)

Active

Detection

Detected Particle

Photon

MCPs and Cameras

Passive or Active (Electronics)

Active

Detection

Detected Particle

Photon

contacts

{name}

Techniques

Absorption

Time-resolved studies

Diffraction

Crystallography
Time-resolved studies

Emission or Reflection

Ellipsometry
Time-resolved studies

Ion Spectroscopy

Ion imaging
Mass spectrometry

Photoelectron emission

Time-resolved studies

Scattering

Coherent scattering
Elastic scattering
Time-resolved scattering

Disciplines

Life Sciences & Biotech

Molecular and cellular biology

Physics

Atomic & molecular physics
Other - Physics

Address

ELI Beamlines
Za radnicí 835
252 41 Dolní Břežany
Czech Republic

control/Data analysis

Control Software Type

HHG & MAC: Tango or local
Users: what they bring

Data Output Format

.SPE, .CSV, .himg, .int

Softwares For Data Analysis

WinView, oscilloscope, WaveView

Equipment That Can Be Brought By The User

Vacuum chamber, detectors, sample, cameras, spectrometers ...etc

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