Conceptual view of a PES gun with a T-PC.
Schematic view of the JPES-1 system.
Schematic view of the laser optical system.
Typical laser spot profile observed by a CCD camera.
Schematic crystal layer structure of a T-PC, where is the fraction ratio of P element in the GaAsP layer.
Emission current as a function of extraction voltage for different laser power conditions.
Emission current as a function of laser power for two different QE surface conditions.
Observed ESP and QE spectra, indicated by closed circles and open squares, respectively.
Spin-resolved QE spectra as a function of laser photon energy, where QL and QR are indicated by closed circles and open circles, respectively.
(a) Schematic images of different laser focus conditions along the vertical axis and (b) ESP dependence on laser focus position on axis.
(a) Beam radius at downstream from the T-PC and (b) reduced brightness, measured as a function of extraction voltage.
Reduced brightness as a function of the obtained downstream beam current.
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