Abstract
IR FEL Research Center was established in the Noda Campus of the Science University of Tokyo on April 1, 1999, as a FEL user facility dedicated for the application of infrared free electron laser. The first observation of lasing emission from the mid-infrared free electron laser (MIR-FEL) was done on July 6, 2000 and the saturation emission was observed on September 27, 2000. The MIR-FEL machine is stably providing light for various application experiments. The infrared light from MIR-FEL is tunable over the wavelength region from 5 to 16 microns, the time width of its micro-pulse being about 2 pico-seconds with peak power of a few MW. Another FEL machine (FIR-FEL), which covers the wavelength region of 300-1000 microns, is now under construction. We report here the present status of the FEL machines, beam lines and experimental apparatus installed in the IR FEL Research Center.
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