An ultrafast angle-resolved photoemission apparatus for measuring complex materials

Journal Article · Sat Dec 15 00:00:00 EST 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4772070· OSTI ID:22094036

Smallwood, Christopher L.; Lanzara, Alessandra ^[1]; Jozwiak, Christopher ^[2]; Wentao, Zhang ^[3]

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1. Department of Physics, University of California, Berkeley, California 94720 (United States)
2. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
3. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

We present technical specifications for a high resolution time- and angle-resolved photoemission spectroscopy setup based on a hemispherical electron analyzer and cavity-dumped solid state Ti:sapphire laser used to generate pump and probe beams, respectively, at 1.48 and 5.93 eV. The pulse repetition rate can be tuned from 209 Hz to 54.3 MHz. Under typical operating settings the system has an overall energy resolution of 23 meV, an overall momentum resolution of 0.003 A{sup -1}, and an overall time resolution of 310 fs. We illustrate the system capabilities with representative data on the cuprate superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}. The descriptions and analyses presented here will inform new developments in ultrafast electron spectroscopy.

• OSTI ID: 22094036
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 12; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAMS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CUPRATES
ENERGY RESOLUTION
LASER CAVITIES
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
PULSES
RESONATORS
SOLIDS
SPECIFICATIONS
STRONTIUM COMPOUNDS
SUPERCONDUCTING DEVICES
SUPERCONDUCTORS
TIME RESOLUTION