Development of a vacuum ultraviolet laser-based angle-resolved photoemission system with a superhigh energy resolution better than 1 meV

Journal Article · Fri Feb 15 00:00:00 EST 2008 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2835901· OSTI ID:21103862

Guodong, Liu; Wentao, Zhang; Haiyun, Liu; Lin, Zhao; Jianqiao, Meng; Xiaoli, Dong; Zhou, X J ^[1]; Guiling, Wang; Hongbo, Zhang; Yong, Zhou; Zuyan, Xu ^[2]; Yong, Zhu; Guochun, Zhang; Xiaoyang, Wang; Chuangtian, Chen ^[3]

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1. National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 (China)
2. Laboratory for Optics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 (China)
3. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080 (China)

The design and performance of the first vacuum ultraviolet (VUV) laser-based angle-resolved photoemission (ARPES) system are described. The VUV laser with a photon energy of 6.994 eV and bandwidth of 0.26 meV is achieved from the second harmonic generation using a novel nonlinear optical crystal KBe{sub 2}BO{sub 3}F{sub 2}. The new VUV laser-based ARPES system exhibits superior performance, including superhigh energy resolution better than 1 meV, high momentum resolution, superhigh photon flux, and much enhanced bulk sensitivity, which are demonstrated from measurements on a typical Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} high temperature superconductor. Issues and further development related to the VUV laser-based photoemission technique are discussed.

• OSTI ID: 21103862
• Journal Information: Review of Scientific Instruments, Vol. 79, Issue 2; Other Information: DOI: 10.1063/1.2835901; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
36 MATERIALS SCIENCE
BERYLLIUM COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CRYSTALS
DESIGN
ENERGY RESOLUTION
FAR ULTRAVIOLET RADIATION
HARMONIC GENERATION
HIGH-TC SUPERCONDUCTORS
LASERS
MEV RANGE 01-10
NONLINEAR PROBLEMS
PERFORMANCE
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
PHOTONS
POTASSIUM COMPOUNDS
SENSITIVITY
STRONTIUM COMPOUNDS