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

Applied Sciences

Sylvain Maclot¹  Linnea Rading¹  Hampus Wikmark¹  Mathieu Gisselbrecht¹  Bart Oostenrijk¹  Piotr Rudawski¹  Hélène Coudert-Alteirac¹  Filippo Campi¹  Per Johnsson¹  Jan Lahl¹  Jasper Peschel¹ 

[1] Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden;

关键词: high-order harmonic generation;    velocity map imaging;    extreme ultraviolet;    covariance;    ultrafast nonlinear optics;    particle correlation;   

DOI  :  10.3390/app8060998

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown