Photoelectron tomography with an intra-cavity velocity-map imaging spectrometer at 100 MHz repetition rate

被引：7

作者：

Oelmann, J-H ^{[1
,2
]}

Heldt, T. ^{[1
,2
]}

Guth, L. ^{[1
]}

Nauta, J. ^{[1
,2
,3
]}

Lackmann, N. ^{[1
]}

Wossner, V ^{[1
]}

Kokh, S. ^{[1
]}

Pfeifer, T. ^{[1
]}

Crespo Lopez-Urrutia, J. R. ^{[1
]}

机构：

[1] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany

[2] Heidelberg Grad Sch Phys, Neuenheimer Feld 226, D-69120 Heidelberg, Germany

[3] Swansea Univ, Coll Sci, Dept Phys, Singleton Pk, Swansea SA2, W Glam, Wales

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2022年 / 93卷 / 12期

关键词：

ABOVE-THRESHOLD IONIZATION; MULTIPHOTON IONIZATION; FREQUENCY COMB; MOMENTUM SPECTROSCOPY; RECOIL-ION; XENON; STATE; COLLISION; IMAGES; COLD;

D O I：

10.1063/5.0104679

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present a compact velocity-map imaging (VMI) spectrometer for photoelectron imaging at 100 MHz repetition rate. Ultrashort pulses from a near-infrared frequency comb laser are amplified in a polarization-insensitive passive femtosecond enhancement cavity. In the focus, multi-photon ionization (MPI) of gas-phase atoms is studied tomographically by rotating the laser polarization. We demonstrate the functioning of the VMI spectrometer by reconstructing photoelectron angular momentum distributions from xenon MPI. Our intra-cavity VMI setup collects electron energy spectra at high rates, with the advantage of transferring the coherence of the cavity-stabilized femtosecond pulses to the electrons. In addition, the setup will allow studies of strong-field effects in nanometric tips. (C) 2022 Author(s)

引用

页数：12

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