Speaker
Description
A low-intensity double-slit experiment in the time domain has been undertaken by measuring the spectral distribution of synchrotron light from a single relativistic electron in a storage ring. In two consecutive undulators with a dispersive section between them (known as optical klystron), an electron beam emits two temporally separated light pulses leading to a spectrum with interference fringes - in close analogy to the angular distribution of light behind two spatially separated slits. Experiments at the electron storage rings DELTA in Dortmund, Germany, and UVSOR-III in Okazaki, Japan, show directly that the spectral distribution of accumulated synchrotron light from a single electron is essentially the same as the spectrum from a beam of many electrons. While the latter is usually explained by interference between simultaneous the light waves from the two undulators, the single-electron experiments demonstrate the uncertainty of the photon source point over several meters.
Funding Agency
Work supported by BMFTR (contract 05K22PE4) and by the Federal State NRW
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