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Polarization effects on the effective temperature of an ultracold electron source
New Journal of Physics
The influence has been studied of the ionization laser polarization on the effective temperature of an ultracold electron source, which is based on near-threshold photoionization. This source is capable of producing both high-intensity and high-coherence electron pulses, with applications in for example electron diffraction experiments. For both nanosecond and femtosecond photoionization, a sinusoidal dependence of the temperature on polarization angle has been found. For most experimentaldoi:10.1088/1367-2630/15/12/123015 fatcat:qsirn364rrapdirseyor53u6gi