University of Hertfordshire

By the same authors

Possibilities of the multi-channel lidar spectrometer technique for investigation of the atmospheric aerosols and pollutions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Original languageEnglish
Title of host publicationLidar Remote Sensing for Environmental Monitoring XI
Volume7860
DOIs
Publication statusPublished - 2010
EventLidar Remote Sensing for Environmental Monitoring XI - Incheon, Korea, Republic of
Duration: 12 Oct 201014 Oct 2010

Conference

ConferenceLidar Remote Sensing for Environmental Monitoring XI
CountryKorea, Republic of
CityIncheon
Period12/10/1014/10/10

Abstract

In inelastic Raman scattering the scattered signal consists of radiation that has undergone a frequency shift which is characteristic for the stationary energy states of an irradiated molecule. Nowadays, Raman and fluorescence spectroscopy is commonly used in chemistry. Information on the radiation that results from transition between the vibrational energy states of the excited molecules, respectively, is specific to the chemical bonds and symmetry of molecules. This radiation therefore provides unique information regarding the irradiated molecule according to which the molecular species can be identified. Raman spectroscopy represents a particularly powerful tool for laser remote sensing because it allows us to both identify and quantify the trace constituent relative to the major constituents of a mixture. In this paper we present a multi-channel spectrometric lidar system which allows us to measure Raman and fluorescence spectrums that give us information on chemical signatures characteristic for chemical components of aerosol particles and pollutions. In the following, we describe the methodology, the system and we show experimental results.

ID: 12880666