QUANTUM MATERIALS SPECTROSCOPY CENTRE

ARPES

Angle-resolved photoemission endstation

  Online

The ARPES endstation features a high-resolution Scienta-Omicron R4000 electron analyzer.

Schematic

Specifications

Beamline and ARPES Endstation Specifications
Energy 15 – 1200 eV
Polarization Planar Horizontal & Vertical, Circular Left & Right (others available on request)
Flux 10¹² – 10¹³ photons/sec
Spot Size 20 µm × 100 µm
Resolving Power > 10000 over full energy range
Sample Temperature 9 – 320 K

Beamline Optics

The first optical element of the beamline, a tangential cylindrical mirror, deflects and collimates the beam horizontally. The Variable Line Spaced Plane Grating Monochromator (VLS-PGM) is equipped with four VLS gratings to cover the designed energy range of the beamline. The monochromatic light is focused on the exit slit, and then re-focused at the sample position by selecting one of two toroidal mirrors depending on which beamline branch is in use.

Techniques:

  • Angle Resolved Photoemission (ARPES)