Lidars for atmospheric probing: A review
- Autores: S.L. Jain
- Localización: Óptica pura y aplicada, ISSN-e 2171-8814, Vol. 41, Nº. 2 (JUN), 2008 (Ejemplar dedicado a: IV Workshop LIDAR measur. in Latinamerica), págs. 129-133
- Idioma: inglés
- Enlaces
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Resumen
The earth’s environment is constantly changing due to anthropogenic and natural activities. The monitoring of various minor constituents including aerosols has an important role in the understanding of physics, chemistry and dynamics of the atmosphere. The discovery of laser in early 1960’s and its rapid development led almost immediate first application in atmospheric probing. With the availability of tunable laser sources with adequate energy and spectral purity remote monitoring of atmosphere using lidars has now been actively pursued. Keeping this in view a highly sophisticated and ultra high spectral resolution Laser Heterodyne System(LHS), differential absorption lidar (DIAL) using a tunable CO2 laser and a micro pulse lidar (MPL) with facility to measure depolarization ratio have been designed and developed at National Physical Laboratory, New Delhi, to monitor various minor constituents along with aerosols in the atmosphere. In the present communication the salient features of the laser based systems developed at NPL along with the results obtained will be discussed.
