Time-resolved momentum microscopy with a 1 MHz high-harmonic extreme ultraviolet beamline

We present photoelectron spectroscopy experiments using an 88 MHz cavityenhanced high-harmonic source operating from 8 to 40 eV. Nanoampere space-charge free sample photo currents enable us to record time-resolved photoelectron spectra from weakly excited samples.

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Extreme ultraviolet-excited time-resolved luminescence spectroscopy using an ultrafast table-top high-harmonic generation source

Review of Scientific Instruments ◽

10.1063/5.0064780 ◽

2021 ◽

Vol 92 (11) ◽

pp. 113004

Author(s):

M. L. S. van der Geest ◽

N. Sadegh ◽

T. M. Meerwijk ◽

E. I. Wooning ◽

L. Wu ◽

...

Keyword(s):

Harmonic Generation ◽

Extreme Ultraviolet ◽

High Harmonic ◽

High Harmonic Generation ◽

Luminescence Spectroscopy ◽

Time Resolved

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A multipurpose end-station for atomic, molecular and optical sciences and coherent diffractive imaging at ELI beamlines

The European Physical Journal Special Topics ◽

10.1140/epjs/s11734-021-00192-z ◽

2021 ◽

Author(s):

Eva Klimešová ◽

Olena Kulyk ◽

Ziaul Hoque ◽

Andreas Hult Roos ◽

Krishna P. Khakurel ◽

...

Keyword(s):

Extreme Ultraviolet ◽

High Harmonic ◽

Liquid Jets ◽

Velocity Map Imaging ◽

Diffractive Imaging ◽

Time Resolved ◽

Coherent Diffractive Imaging ◽

The Status ◽

Magnetic Bottle ◽

Focused Beams

AbstractWe report on the status of a users’ end-station, MAC: a Multipurpose station for Atomic, molecular and optical sciences and Coherent diffractive imaging, designed for studies of structure and dynamics of matter in the femtosecond time-domain. MAC is located in the E1 experimental hall on the high harmonic generation (HHG) beamline of the ELI Beamlines facility. The extreme ultraviolet beam from the HHG beamline can be used at the MAC end-station together with a synchronized pump beam (which will cover the NIR/Vis/UV or THz range) for time-resolved experiments on different samples. Sample delivery systems at the MAC end-station include a molecular beam, a source for pure or doped clusters, ultrathin cylindrical or flat liquid jets, and focused beams of substrate-free nanoparticles produced by an electrospray or a gas dynamic virtual nozzle combined with an aerodynamic lens stack. We further present the available detectors: electron/ion time-of-flight and velocity map imaging spectrometers and an X-ray camera, and discuss future upgrades: a magnetic bottle electron spectrometer, production of doped nanodroplets and the planned developments of beam capabilities at the MAC end-station.

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Spin-ARPES EUV Beamline for Ultrafast Materials Research and Development

Applied Sciences ◽

10.3390/app9030370 ◽

2019 ◽

Vol 9 (3) ◽

pp. 370 ◽

Cited By ~ 3

Author(s):

Zhonghui Nie ◽

Ion Cristian Edmond Turcu ◽

Yao Li ◽

Xiaoqian Zhang ◽

Liang He ◽

...

Keyword(s):

Research And Development ◽

Extreme Ultraviolet ◽

Photovoltaic Effect ◽

Average Power ◽

High Harmonic ◽

Acquisition Time ◽

Generation Process ◽

Time Resolved ◽

Materials Research ◽

Fs Laser

A new femtosecond, Extreme Ultraviolet (EUV), Time Resolved Spin-Angle Resolved Photo-Emission Spectroscopy (TR-Spin-ARPES) beamline was developed for ultrafast materials research and development. This 50-fs laser-driven, table-top beamline is an integral part of the “Ultrafast Spintronic Materials Facility”, dedicated to engineering ultrafast materials. This facility provides a fast and in-situ analysis and development of new materials. The EUV source based on high harmonic generation process emits 2.3 × 1011 photons/second (2.3 × 108 photons/pulse) at H23 (35.7 eV) and its photon energy ranges from 10 eV to 75 eV, which enables surface sensitive studies of the electronic structure dynamics. The EUV monochromator provides the narrow bandwidth of the EUV beamline while preserving its pulse duration in an energy range of 10–100 eV. Ultrafast surface photovoltaic effect with ~650 fs rise-time was observed in p-GaAs (100) from time-resolved ARPES spectra. The data acquisition time could be reduced by over two orders of magnitude by scaling the laser driver from 1 KHz, 4W to MHz, KW average power.

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High Harmonic Generation from Laser-Induced Plasmas of Ni-Doped CsPbBr3 Nanocrystals: Implications for Extreme Ultraviolet Light Sources

ACS Applied Nano Materials ◽

10.1021/acsanm.1c01490 ◽

2021 ◽

Author(s):

Srinivasa Rao Konda ◽

Venugopal Rao Soma ◽

Murali Banavoth ◽

Ravi Ketavath ◽

Venkatesh Mottamchetty ◽

...

Keyword(s):

Ultraviolet Light ◽

Harmonic Generation ◽

Extreme Ultraviolet ◽

High Harmonic ◽

High Harmonic Generation ◽

Light Sources ◽

Extreme Ultraviolet Light

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Table-top extreme ultraviolet second harmonic generation

Science Advances ◽

10.1126/sciadv.abe2265 ◽

2021 ◽

Vol 7 (21) ◽

pp. eabe2265

Author(s):

Tobias Helk ◽

Emma Berger ◽

Sasawat Jamnuch ◽

Lars Hoffmann ◽

Adeline Kabacinski ◽

...

Keyword(s):

Second Harmonic Generation ◽

Harmonic Generation ◽

First Principles ◽

Extreme Ultraviolet ◽

Second Harmonic ◽

High Harmonic ◽

Electronic Structure Calculations ◽

Free Electron Lasers ◽

X Ray ◽

Structure Calculations

The lack of available table-top extreme ultraviolet (XUV) sources with high enough fluxes and coherence properties has limited the availability of nonlinear XUV and x-ray spectroscopies to free-electron lasers (FELs). Here, we demonstrate second harmonic generation (SHG) on a table-top XUV source by observing SHG near the Ti M2,3 edge with a high-harmonic seeded soft x-ray laser. Furthermore, this experiment represents the first SHG experiment in the XUV. First-principles electronic structure calculations suggest the surface specificity and separate the observed signal into its resonant and nonresonant contributions. The realization of XUV-SHG on a table-top source opens up more accessible opportunities for the study of element-specific dynamics in multicomponent systems where surface, interfacial, and bulk-phase asymmetries play a driving role.

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