Towards a supercontinuum-based infrared lidar

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 enhancemen...

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Published inApplied physics. B, Lasers and optics Vol. 77; no. 2-3; pp. 357 - 359
Main Authors Méjean, G., Kasparian, J., Salmon, E., Yu, J., Wolf, J.-P., Bourayou, R., Sauerbrey, R., Rodriguez, M., Wöste, L., Lehmann, H., Stecklum, B., Laux, U., Eislöffel, J., Scholz, A., Hatzes, A.P.
Format Journal Article
LanguageEnglish
Published Heidelberg Springer Nature B.V 01.09.2003
Springer Verlag
Subjects
Altitude
Applied physics
Astronomical instruments
Backscattering
Conversion
Femtosecond
Infrared
Infrared astronomy
Lasers
Lidar
Optics
Physics
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-003-1183-x