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Proceedings Paper

Tunable lidar system based on IR OPA laser source
Author(s): Paolo F. Ambrico; Aldo Amodeo; Salvatore Amoruso; Mario Armenante; V. Berardi; Antonella Boselli; Riccardo Bruzzese; Roberta Capobianco; Gelsomina Pappalardo; Nicola Spinelli; Raffaele Velotta; Xuan Wang
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Paper Abstract

A lidar system with the characteristic of simultaneously monitoring several atmospheric parameters such as atmospheric aerosols load, water vapor content, temperature and density, atmospheric transmissivity, and atmospheric pollutants concentration, has been realized. This system, based on two OPA lasers pumped by a Nd:YAG laser operating at maximum repetition rate of 100 Hz, is primary dedicated to tropospheric measurements. The system is continuously tunable over the spectral range 410 nm - 2500 nm, allowing DIAL measurements in a region where most of atmospheric pollutants display absorption lines. Preliminary measurements have been carried out. We report the simultaneous temporal evolution of the aerosol backscattering coefficient profiles at 355 nm and 829 nm in a rural area. A method to select optimal couples of wavelength for DIAL measurements in the near/mid IR spectral region has been developed. A sensitivity analysis has been carried out in order to find the minimum detectable concentration, that has been demonstrated of the order of few tenths up to few part per million in volume.

Paper Details

Date Published: 19 August 1998
PDF: 8 pages
Proc. SPIE 3504, Optical Remote Sensing for Industry and Environmental Monitoring, (19 August 1998); doi: 10.1117/12.319571
Show Author Affiliations
Paolo F. Ambrico, INFM and INFN (Italy)
Aldo Amodeo, INFM and INFN (Italy)
Salvatore Amoruso, INFM and Univ. della Basilicata (Italy)
Mario Armenante, INFM and INFN (Italy)
V. Berardi, INFM and Univ. degli Studi di Napoli Federico II (Italy)
Antonella Boselli, INFM (Italy)
Riccardo Bruzzese, INFM and Univ. degli Studi Napoli Federico II (Italy)
Roberta Capobianco, INFM (Italy)
Gelsomina Pappalardo, INFM and Istituto di Metodologie Avanzate di Analisi Ambientale (Italy)
Nicola Spinelli, INFM (Italy)
Raffaele Velotta, INFM and Univ. degli Studi di Napoli Federico II (Italy)
Xuan Wang, INFM and Univ. degli Studi di Napoli Federico II (Italy)

Published in SPIE Proceedings Vol. 3504:
Optical Remote Sensing for Industry and Environmental Monitoring
Upendra N. Singh; Huanling Hu; Gengchen Wang, Editor(s)

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