Abstract
Lidar signals were obtained for the first time in the near-infrared using the supercontinuum generated by the terawatt femtosecond laser of the Teramobile system. A signal up to 4 km in altitude, in the band 1-1.7 μm, was collected using a 2 m astronomical telescope. We observed a 10-fold enhancement of the infrared signal backscattered from the atmosphere compared with that expected using a previously measured laboratory spectrum. This suggests a more efficient frequency conversion into the infrared (typically 7% into the 1-1.5 μm band) under long-distance propagation conditions.
Original language | English |
---|---|
Pages (from-to) | 357-359 |
Number of pages | 3 |
Journal | Applied Physics B: Lasers and Optics |
Volume | 77 |
Issue number | 2-3 |
DOIs | |
State | Published - Sep 2003 |
Externally published | Yes |