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HIGH SENSITIVITY INTRA-CAVITY LASER ABSORPTION SPECTROSCOPY WITH VERTICAL EXTERNAL CAVITY SURFACE EMITTING SEMICONDUCTOR LASERS

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/19564

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dc.creator Garnache, Arnaud en_US
dc.creator Kachanov, Alexander A. en_US
dc.creator Stoeckel, F. en_US
dc.creator Planel, Richard en_US
dc.creator Houdre, Romuald en_US
dc.date.accessioned 2006-06-15T19:24:19Z
dc.date.available 2006-06-15T19:24:19Z
dc.date.issued 1999 en_US
dc.identifier 1999-WG-10 en_US
dc.identifier.uri http://hdl.handle.net/1811/19564
dc.description Author Institution: Laboratoire de Spectrom\'{e}trie Physique; Laboratoire de Microstructures et de Micro\'{e}lectronique; Institut de Microet Opto\'{e}lectronique - EPFL, CH 1015, Lausanne. Switzerland., Laboratoire de Microstructures et de Micro\'{e}lectronique en_US
dc.description.abstract We report the demonstration of high sensitivity Intra-Cavity-Laser-Absorption-Spectroscopy (ICLAS) employing Multiple-Quantum-Well Vertical-External-Cavity Surface-Emitting semiconductor Lasers (VECSEL's). A detection limit of $10^{-10} cm^{-1}$ has been achieved. The spectro-temporal dynamics of a broadband VECSEL in the 1000 nm wavelength range has been studied in order to determine the sensitivity limit of the new class of the laser materials suitable for ICLAS. The laser was operating CW at room-temperature, with a baseline signal to noise ratio as high as 400. The laser was diode pumped with a threshold as low as 110 mW and broadly tunable over a spectral range of about 76 nm. In the nearest future this should allow developing very compact transportable ICLAS instruments, suitable for in situ measurements. VECSEL systems offer very wide operating range in the near- and mid-Infrared from $0.7 \mu$m to $2.5 \mu$m. en_US
dc.format.extent 126250 bytes
dc.format.mimetype image/jpeg
dc.language.iso English en_US
dc.title HIGH SENSITIVITY INTRA-CAVITY LASER ABSORPTION SPECTROSCOPY WITH VERTICAL EXTERNAL CAVITY SURFACE EMITTING SEMICONDUCTOR LASERS en_US
dc.type article en_US