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`Spiking' radiation in the Columbia free electron laser

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2 Author(s)
Dodd, J.W. ; Dept. of Appl. Phys., Columbia Univ., New York, NY, USA ; Marshall, T.C.

A report is presented on the observation of spikes of high-intensity radiation emitted from a 2-mm wavelength Raman free electron laser oscillator. The spikes are correlated with a well-developed sideband spectrum, including several sideband harmonics, together with the carrier. A pulse width ~150 ps is obtained from analysis of data obtained with a two-slit Young's experiment. An even shorter pulse width results from a numerical model. Using an elementary model of the spike, it is estimated that the peak spike pulse power is ~100 MW

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Plasma Science, IEEE Transactions on  (Volume:18 ,  Issue: 3 )