Chiwon Lee

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Achieving small transverse beam emittance is important for high brightness cathodes for free electron lasers and electron diffraction and imaging experiments. Double-gate field emitter arrays with on-chip focussing electrode, operating with electrical switching or near infrared laser excitation, have been studied as cathodes that are competitive with(More)
An incorrect version of the Supplementary Information was inadvertently published with this Article where wrong vector notation was used for equation (4), wrong font for 'phi' on page 10 and the wrong unit '(m)' was used instead of '(mm)' for the x-axis of Supplementary Fig. 2a. The HTML has now been updated to include the correct version of the(More)
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