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Inicio  /  Applied Sciences  /  Vol: 8 Núm: 6 Par: June (2018)  /  Artículo
ARTÍCULO
TITULO

A Versatile Velocity Map Ion-Electron Covariance Imaging Spectrometer for High-Intensity XUV Experiments

Linnea Rading    
Jan Lahl    
Sylvain Maclot    
Filippo Campi    
Hélène Coudert-Alteirac    
Bart Oostenrijk    
Jasper Peschel    
Hampus Wikmark    
Piotr Rudawski    
Mathieu Gisselbrecht and Per Johnsson    

Resumen

We report on the design and performance of a velocity map imaging (VMI) spectrometer optimized for experiments using high-intensity extreme ultraviolet (XUV) sources such as laser-driven high-order harmonic generation (HHG) sources and free-electron lasers (FELs). Typically exhibiting low repetition rates and high single-shot count rates, such experiments do not easily lend themselves to coincident detection of photo-electrons and -ions. In order to obtain molecular frame or reaction channel-specific information, one has to rely on other correlation techniques, such as covariant detection schemes. Our device allows for combining different photo-electron and -ion detection modes for covariance analysis. We present the expected performance in the different detection modes and present the first results using an intense high-order harmonic generation (HHG) source.

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