Abstract
The intriguing electronic properties of two-dimensional materials motivates experiments to resolve their rapid, microscopic interactions and dynamics across momentum space. Essential insight into the electronic momentum-space dynamics can be obtained directly via time- and angle-resolved photoemission spectroscopy (trARPES). We discuss the development of a high-repetition rate trARPES setup that employs a bright source of narrowband, extreme-UV harmonics around 22.3 eV, and its application to sensitive studies of materials dynamics. In the bulk transition-metal dichalcogenide MoSe2 momentum-space quasiparticle scattering is observed after resonant excitation at the K-point exciton line, resulting in the time-delayed buildup of electrons at the Σ-point conduction band minimum. We will discuss this and other aspects of the non-equilibrium electronic response accessible with the extreme-UV trARPES probe.
Original language | English (US) |
---|---|
Title of host publication | Ultrafast Phenomena and Nanophotonics XXI |
Editors | Markus Betz, Abdulhakem Y. Elezzabi |
Publisher | SPIE |
ISBN (Electronic) | 9781510606456 |
DOIs | |
State | Published - 2017 |
Externally published | Yes |
Event | Ultrafast Phenomena and Nanophotonics XXI 2017 - San Francisco, United States Duration: Jan 30 2017 → Feb 2 2017 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
---|---|
Volume | 10102 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Ultrafast Phenomena and Nanophotonics XXI 2017 |
---|---|
Country/Territory | United States |
City | San Francisco |
Period | 1/30/17 → 2/2/17 |
Keywords
- Molybdenum Diselenide
- Time- and angle-resolved photoemission spectroscopy
- Transitionmetal dichalcogenides
- Ultrafast phenomena in semiconductors
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering