Record Display for the EPA National Library Catalog

RECORD NUMBER: 174 OF 892

OLS Field Name OLS Field Data
Main Title Development and Application of Tunable Diode Lasers to the Detection and Quantitative Evaluation of Pollutant Gases.
Author Hinkle, E. David ; Sampl, J. O. ;
CORP Author Massachusetts Inst. of Tech., Lexington. Lincoln Lab.
Year Published 1972
Report Number F19628-70-C-0230; R2-72-090;
Stock Number PB-214 240
Additional Subjects ( Air pollution ; Gas analysis) ; ( Semiconductor lasers ; Gas detectors) ; ( Sulfur dioxide ; Gas analysis) ; Monitors ; Infrared lasers ; Infrared spectroscopy ; Lead inorganic compounds ; Tin inorganic compounds ; Lead tellurides ; Tin tellurides ; Absorption spectra ; Remote sensing ; Heterodyning ; Molecular energy levels ; Laser spectroscopy ; Tunable lasers ; Air pollution detection
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-214 240 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 65p
Abstract
Results are presented of a program concerned with the development of tunable semi conductor diode lasers and their potential application toward solving some of the air pollution monitoring problems. The tunable diode lasers developed under the program are described. Information is given concerning some of the spectroscopic information obtained form the laser scans of portions of the gamma 1 band of SO2 between 1100 and 1200/cm, with special attention to comparison between experiment and theory. Initial experiments confirming the theory for remoter heterodyne detection are described. Next, experiments are discussed which relate to potential monitoring applications. The use of the first and second derivative techniques in point-sampling applications is compared, and an experiment showing present limits of detectability is described. Preliminary studies of interference effects, temperature and long-path transmission of diode radiation are also included.