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Laser photoelectron sources of high apparent brightness

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1 Author(s)
Massey, G.A. ; San Diego State University, San Diego, CA, USA

By focusing an ultraviolet laser beam to a small spot on an appropriately shaped cathode, one can obtain photoelectron beams of 106A . cm-1. sr-1brightness. Such a continuous electron source may be useful in electron beam lithography and other applications. Calculations of current densities, brightness, and emitter temperature rises are presented.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:20 ,  Issue: 2 )