Groups LAP is one of the six laboratories in the Photon Science Division (PSD). It comprises four groups: Insertion Devices Group The group designs and builds undulators for SLS and SwissFEL and gives support to the beamlines. Insertion Devices Group Beamline Optics Group The group designs, builds and maintains beamlines at SLS, SwissFEL and operates the metrology lab. The group operates the OPTICS beamline. Beamline Optics Group Photon Diagnostics Online diagnostics for better experiment and machine performance. Photonic Diagnostics Group Photonics Instrumentation Providing the best Photonics Instruments for the SLS and SwissFEL. Photonics Instrumentation Group