We present a new type of metallic cathode, reaching quantum efficiency of 10^−3. This value together with the estimated emittance, gives a brilliance of 2.8x10^13 m^2, making this cathode an excellent candidate for an ultrashort electron source.
© 2012 OSA
F. Ardana Lamas, "High quantum efficiency, low emittance electron beam from multifilamentary cathodes," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (Optical Society of America, 2012), paper JW2A.11.
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