The user laboratories of FELBE

• Seven different user labs are available to which the FEL IR radiation is distributed via an optical transport line. The total lab space is approximately 130 m².
• The individual labs are equipped as follows.  

  lab 113a/b	Semiconductor spectroscopy lab	This lab is equipped with a fs and a ps table-top Ti:sapphire laser. In addition an optical magneto-cryostat (8 Tesla), several He-flow cryostats and a synchroscan streak camera are available.
  lab 113c	fs-amplifier and spectroscopy lab	This lab contains a femtosecond laser amplifier system (6 mJ, 1 kHz) equipped with optical parametric generator/amplifier and sum-frequency generator. The beams of the table-top-laser can also be distributed into the neighboring labs.
  lab 113d	Diagnostics and fs-spectroscopy lab	Details on the diagnostics system can be found here. This lab also contains a regenerative fs laser amplifier system (>5 µJ, up to 250 kHz) with optical parametric amplifier.
  lab 113e	s-SNIM lab	This lab is used for near-field microscopy using a room-temperature aperture-less scattering scanning near-field infrared microscope (s-SNIM) and a cryogenic s-SNIM.
  lab 113f	External user lab for pump-probe spectroscopy	This lab is restricted for experiments of external users. It is equipped with all necessary basic installations (optical table, purge gases, LAN access, etc.) and  instrumentation for time-resolved pump-probe spectroscopy.
  lab 113g	Lab for variable use	This lab is used for temporary experiments.
  lab 113h	Fourier spectroscopy and diagnostics lab	This lab is equipped with a Bruker VERTEX 80v FTIR spectrometer with step scan option.

• Detailed parameters of the installed table-top laser systems are available here. All laser systems can be synchronized to the FELs.
• External users are encouraged to contact us for discussions of future experiments. The procedures for beam time application are summarized here.

• Here is a schematic view of the user labs including the infrared beamlines.