Proposed UV-laser-source-excited high-resolution and high-count-rate time-of-flight photoelectron energy analyzer for solid state samples

Aleksander S. Aleksandrovsky; Vitaly V. Slabko

doi:10.1117/12.186603

14 September 1994 Proposed UV-laser-source-excited high-resolution and high-count-rate time-of-flight photoelectron energy analyzer for solid state samples

Aleksander S. Aleksandrovsky, Vitaly V. Slabko

Author Affiliations +

Proceedings Volume 2282, Ultraviolet Technology V; (1994) https://doi.org/10.1117/12.186603
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

A possibility is considered of obtaining photoelectron spectra of solid state samples near the Fermi edge at an energy resolution down to 1 meV and moderate spectra accumulation times with the help of a time-of-flight analyzer combined with a specially designed UV laser source. Limitations of count rate for such a device and their influence on the energy resolution are considered. The requirements to the laser sources including their wavelengths, pulse duration, repetition rate and pulse energies are discussed. Several possibilities are considered to build the necessary laser source, basing on excimer laser and nonlinear-optically converted neodymium-doped, argon and dye lasers. The construction of required source is shown to be quite feasible. KEYWORDS: laser, photoemission, time-of-flight electron energy analyzer, superconductivity.

Citation Download Citation

Aleksander S. Aleksandrovsky and Vitaly V. Slabko "Proposed UV-laser-source-excited high-resolution and high-count-rate time-of-flight photoelectron energy analyzer for solid state samples", Proc. SPIE 2282, Ultraviolet Technology V, (14 September 1994); https://doi.org/10.1117/12.186603

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