Two-color facility based on a broadly tunable infrared free-electron laser and a subpicosecond-synchronized 10-fs-Ti:sapphire laser
Optics Letters, Vol. 23, Issue 22, pp. 1754-1756 (1998)
http://dx.doi.org/10.1364/OL.23.001754
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Abstract
Subpicosecond synchronization between a mirror-dispersion-controlled 10-fs Ti:sapphire laser and the Free-Electron Laser for Infrared Experiments has been achieved. The measured intensity cross correlation between the two lasers is consistent with a jitter of only 400 fs rms. The wide and continuous tunability of the free-electron laser (FEL; 4.2–300μm) combined with ultrashort pulse duration of six optical cycles and high pulse energy of several tens of microjoules makes a series of two-color experiments possible in a previously inaccessible wavelength range. We demonstrate these capabilities by performing a two-color pump–probe experiment to study carrier cooling in GaAs. A FEL tuned from 8 to 17μm is used as the pump, and a synchronized Ti:sapphire laser pulse serves as the probe.
© 1998 of America
[of America ]
OCIS Codes
(140.2600) Lasers and laser optics : Free-electron lasers (FELs)
(140.7090) Lasers and laser optics : Ultrafast lasers
(260.3090) Physical optics : Infrared, far
(300.6270) Spectroscopy : Spectroscopy, far infrared
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(320.7160) Ultrafast optics : Ultrafast technology
Citation
G. M. H. Knippels, M. J. van de Pol, H. P. M. Pellemans, P. C. M. Planken, and A. F. G. van der Meer, "Two-color facility based on a broadly tunable infrared free-electron laser and a subpicosecond-synchronized 10-fs-Ti:sapphire laser," Opt. Lett. 23, 1754-1756 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-22-1754
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