Wavelength Limit and Optical Loss Dependence on the Lasing Wavelength of Kyoto University Mid-infrared Free Electron Laser

Heishun Zen

Presentation information

Oral presentation

II. Radiation, Accelerator and Beam Technologies » 203-4 Synchrotron Orbital Radiation, Laser

[2N01-05] Synchrotron Radiation, Laser, Electron Source

Thu. Sep 14, 2017 9:30 AM - 10:45 AM Room N (N307 - N Block)

Chair:Noriyosu Hayashizaki (Tokyo Tech)

10:00 AM - 10:15 AM

[2N03] Wavelength Limit and Optical Loss Dependence on the Lasing Wavelength of Kyoto University Mid-infrared Free Electron Laser

*Heishun Zen¹, Toshiteru Kii¹, Hideaki Ohgaki¹ (1. Institute of Advanced Energy, Kyoto University)

Keywords:Infrared Free Electron Laser

A mid-infrared Free Electron Laser (KU-FEL) has been developed at the Institute of Advanced Energy, Kyoto University. The longest wavelength of the FEL was limited to 23 micro-meter. Measurements of optical cavity loss have been performed to understand the limitation. Unexpected increase of cavity loss was observed at the wavelength longer than 15 micro-meter.