一种用于固体和表面阿秒光电子能谱的柔性装置。

A flexible apparatus for attosecond photoelectron spectroscopy of solids and surfaces.

作者信息

Magerl E, Neppl S, Cavalieri A L, Bothschafter E M, Stanislawski M, Uphues Th, Hofstetter M, Kleineberg U, Barth J V, Menzel D, Krausz F, Ernstorfer R, Kienberger R, Feulner P

机构信息

Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.

出版信息

Rev Sci Instrum. 2011 Jun;82(6):063104. doi: 10.1063/1.3596564.

DOI:10.1063/1.3596564

PMID:21721671

Abstract

We describe an apparatus for attosecond photoelectron spectroscopy of solids and surfaces, which combines the generation of isolated attosecond extreme-ultraviolet (XUV) laser pulses by high harmonic generation in gases with time-resolved photoelectron detection and surface science techniques in an ultrahigh vacuum environment. This versatile setup provides isolated attosecond pulses with photon energies of up to 140 eV and few-cycle near infrared pulses for studying ultrafast electron dynamics in a large variety of surfaces and interfaces. The samples can be prepared and characterized on an atomic scale in a dedicated flexible surface science end station. The extensive possibilities offered by this apparatus are demonstrated by applying attosecond XUV pulses with a central photon energy of ∼125 eV in an attosecond streaking experiment of a xenon multilayer grown on a Re(0001) substrate.

摘要

我们描述了一种用于固体和表面阿秒光电子能谱的装置，该装置将气体中高次谐波产生孤立阿秒极紫外（XUV）激光脉冲与超高真空环境下的时间分辨光电子探测及表面科学技术相结合。这种多功能装置可提供光子能量高达140 eV的孤立阿秒脉冲以及少周期近红外脉冲，用于研究各种表面和界面中的超快电子动力学。样品可在专门的灵活表面科学终端站中在原子尺度上进行制备和表征。通过在生长于Re(0001)衬底上的氙多层膜的阿秒条纹实验中应用中心光子能量约为125 eV的阿秒XUV脉冲，展示了该装置所具备的广泛可能性。