Extreme Ultraviolet Time- and Angle-Resolved Photoemission Spectroscopy with 21.5 meV Resolution using High-Order Harmonic Generation from a Turn-Key Yb:KGW Amplifier
arXiv:1907.10497 · doi:10.1063/1.5121425
Abstract
Characterizing and controlling electronic properties of quantum materials require direct measurements of non-equilibrium electronic band structures over large regions of momentum space. Here, we demonstrate an experimental apparatus for time- and angle-resolved photoemission spectroscopy using high-order harmonic probe pulses generated by a robust, moderately high power (20 W) Yb:KGW amplifier with tunable repetition rate between 50 and 150 kHz. By driving high-order harmonic generation (HHG) with the second harmonic of the fundamental 1025 nm laser pulses, we show that single-harmonic probe pulses at 21.8 eV photon energy can be effectively isolated without the use of a monochromator. The on-target photon flux can reach 5 x 10^10 photons/second at 50 kHz, and the time resolution is measured to be 320 fs. The relatively long pulse duration of the Yb-driven HHG source allows us to reach an excellent energy resolution of 21.5 meV, which is achieved by suppressing the space-charge broadening using a low photon flux of 1.5 x 10^8 photons/second at a higher repetition rate of 150 kHz. The capabilities of the setup are demonstrated through measurements in the topological semimetal ZrSiS and the topological insulator Sb2-xGdxTe3.
arXiv comment13 pages, 8 figures
References in corpus (24)
- Angle-resolved photoemission spectroscopy of the cuprate superconductors
- Observation of Floquet-Bloch states on the surface of a topological insulator
- Observation of Topological Nodal Fermion Semimetal Phase in ZrSiS
- Selective scattering between Floquet-Bloch and Volkov states in a topological insulator
- Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi2Se3
- Photoionization in the time and frequency domain
- Strong-field Phenomena in Periodic Systems
- Measurement of intrinsic Dirac fermion cooling on the surface of a topological insulator BiSe using time- and angle-resolved photoemission spectroscopy
- Development of a Vacuum Ultra-Violet Laser-Based Angle-Resolved Photoemission System with a Super-High Energy Resolution Better Than 1 meV
- Disentangling amplitude and phase dynamics of a charge density wave in a photo-induced phase transition
- Tracking Cooper Pairs in a Cuprate Superconductor by Ultrafast Angle-Resolved Photoemission
- Tunability of the topological nodal-line semimetal phase in ZrSiX-type materials
- Energy-dependent photoemission delays from noble metal surfaces by attosecond interferometry
- Bright high-repetition-rate source of narrowband extreme-ultraviolet harmonics beyond 22 eV
- Gigantic surface life-time of an intrinsic topological insulator revealed via time-resolved (pump-probe) ARPES
- Ultrafast extreme ultraviolet photoemission without space charge
- Cavity-enhanced high harmonic generation for XUV time-resolved ARPES
- Intervalley scattering in MoS imaged by two-photon photoemission with a high-harmonic probe
- Time-resolved photoemission apparatus achieving sub-20-meV energy resolution and high stability
- Ultrafast electron calorimetry uncovers a new long-lived metastable state in 1T-TaSe mediated by mode-selective electron-phonon coupling
- Vacuum space charge effect in laser-based solid-state photoemission spectroscopy
- A setup for extreme-ultraviolet ultrafast angle-resolved photoelectron spectroscopy at 50-kHz repetition rate
- High-order harmonic generation using a high-repetition-rate turnkey laser
- A time- and angle-resolved photoemission spectroscopy with probe photon energy up to 6.7 eV
Cited by in corpus (11)
- Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
- High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses
- XUV Spectral Compression by Four-Wave Mixing
- HHG-laser-based time- and angle-resolved photoemission spectroscopy of quantum materials
- Multispectral time-resolved energy-momentum microscopy using high-harmonic extreme ultraviolet radiation
- A newly-designed femtosecond KBeBOF device with pulse duration down to 55 fs for time- and angle-resolved photoemission spectroscopy
- High harmonic generation light source with polarization selectivity and sub-100-m beam size for time- and angle-resolved photoemission spectroscopy
- Ultrafast relaxation of acoustic and optical phonons in a topological nodal-line semimetal ZrSiS
- Time- and angle-resolved photoemission spectroscopy with wavelength-tunable pump and extreme ultraviolet probe enabled by twin synchronized amplifiers
- Time-Resolved Photoemission Spectroscopy of Quantum Materials Using High Harmonic Generation: Probing Electron-Phonon Interactions and Non-Equilibrium Dynamics
- Excited-state band structure mapping