Harmonium: An Ultrafast Vacuum Ultraviolet Facility

Harmonium: An Ultrafast Vacuum Ultraviolet Facility

Harmonium is a vacuum ultraviolet (VUV) photon source built within the Lausanne Centre for Ultrafast Science (LACUS). Utilising high harmonic generation, photons from 20–110 eV are available to conduct steady-state or ultrafast photoelectron and photoion spectroscopies (PES and PIS). A pul...

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Bibliographic Details
Main Authors: Christopher A. Arrell, Marco Grioni, Marcel Drabbels, Frank van Mourik, Andrew Clark, Gianmarco Gatti, Silvan Roth, Alberto Crepaldi, Luca Longetti, José Ojeda, Majed Chergui
Format: Article
Language:deu
Published: Swiss Chemical Society 2017-05-01
Series:CHIMIA
Subjects:
Photoelectron spectroscopy
Photoion spectroscopy
Ultrafast science
Online Access:https://www.chimia.ch/chimia/article/view/1599
Description
Summary:Harmonium is a vacuum ultraviolet (VUV) photon source built within the Lausanne Centre for Ultrafast Science (LACUS). Utilising high harmonic generation, photons from 20–110 eV are available to conduct steady-state or ultrafast photoelectron and photoion spectroscopies (PES and PIS). A pulse preserving monochromator provides either high energy resolution (70 meV) or high temporal resolution (40 fs). Three endstations have been commissioned for: a) PES of liquids; b) angular resolved PES (ARPES) of solids and; c) coincidence PES and PIS of gas phase molecules or clusters. The source has several key advantages: high repetition rate (up to 15 kHz) and high photon flux (1011 photons per second at 38 eV). The capabilities of the facility complement the Swiss ultrafast and X-ray community (SwissFEL, SLS, NCCR MUST, etc.) helping to maintain Switzerland's leading role in ultrafast science in the world.
ISSN:0009-4293
2673-2424

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