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2019•Unpublished venueRequires access

Ultrafast Extreme-Ultraviolet Photoemission Spectroscopy at 18.4 MHz

Stephan Heinrich, Tobias Saule, Johannes Schötz, Nikolai Lilienfein, Maximilian Högner, Oliver de Vries, Marco Plötner, Johannes Weitenberg, Dominik Esser, Jan Schulte, Peter Russbueldt, Jens Limpert, Matthias F. Kling, U. Kleineberg, Ioachim Pupeza

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Abstract

In the past two decades, attosecond science has led to important insights into ultrafast electron dynamics. Whilst extreme-ultraviolet (XUV) photon flux attained from high harmonic generation (HHG) has increased significantly over this time, space-charge effects limit the maximum allowable number of photons per pulse for many attosecond experiments, especially in multidimensional - i.e., either angularly (ARPES) or spatially (PEEM) resolved - photoelectron spectroscopy (PES) on solids [1,2]. To allow for higher average flux without increasing space-charge impairments, HHG sources at higher repetition rates are needed.

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What this paper is about

In the past two decades, attosecond science has led to important insights into ultrafast electron dynamics. Whilst extreme-ultraviolet (XUV) photon flux attained from high harmonic generation (HHG) has increased significantly over this time, space-charge effects limit the maximum allowable number of photons per pulse for many attosecond experiments, especially in multidimensional - i.e., either angularly (ARPES) or spatially (PEEM) resolved - photoelectron spectroscopy (PES) on solids [1,2]. To allow for higher average flux without increasing space-charge impairments, HHG sources at higher repetition rates are needed.

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Available abstract

In the past two decades, attosecond science has led to important insights into ultrafast electron dynamics. Whilst extreme-ultraviolet (XUV) photon flux attained from high harmonic generation (HHG) has increased significantly over this time, space-charge effects limit the maximum allowable number of photons per pulse for many attosecond experiments, especially in multidimensional - i.e., either angularly (ARPES) or spatially (PEEM) resolved - photoelectron spectroscopy (PES) on solids [1,2]. To allow for higher average flux without increasing space-charge impairments, HHG sources at higher repetition rates are needed.

Key concepts: Attosecond, Extreme ultraviolet, Ultrashort pulse, High harmonic generation, Angle-resolved photoemission spectroscopy, Physics, Photoemission spectroscopy, Spectroscopy

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