Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Two-colour operation and applications of the clio fel in the mid-infrared range

Prazeres, R. and Glotin, F. and Insa, C. and Jaroszynski, D.A. and Ortega, J.M. (1998) Two-colour operation and applications of the clio fel in the mid-infrared range. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 407 (1-3). pp. 464-469. ISSN 0168-9002

Full text not available in this repository. (Request a copy from the Strathclyde author)


The two-colour operation of an FEL has been demonstrated a few years ago with the CLIO infrared free-electron laser, but the intracavity Brewster plate used for laser extraction did not allow to lase at wavelengths larger than 15 μm, and the two-colours separation could not be larger than λ1-λ2=1 μm. Recently, we have achieved two-colour operation with hole coupling, allowing a larger tuning range from 5 to 18 μm, and with a two-colour wavelength separation up to λ1-λ2=5 μm. A pump/probe application experiment has been performed with the two colours, and this is the best demonstration of the stability and reliability of the two-colour laser operation.