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Development of a 3-D energy-momentum analyzer for meV-scale energy electrons
S Karkare1, J Feng2, J Maxson3
1Department of Physics, Arizona State University, Tempe, Arizona 85282, USA.
Abstract:
In this article, we report on the development of a time-of-flight based electron energy analyzer capable of measuring the 3-D momentum and energy distributions of very low energy (millielectronvolt-scale) photoemitted electrons. This analyzer is capable for measuring energy and 3-D momentum distributions of electrons with energies down to 1 meV with a sub-millielectronvolt energy resolution. This analyzer is an ideal tool for studying photoemission processes very close to the photoemission threshold and also for studying the physics of photoemission based electron sources.
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