The quest for increased sensitivity and specificity is common to all remote sensing techniques. At the present time there is no single method which can meet all of the operational requirements for even some of the many tasks amenable to remote detection and analysis. Individual techniques can be optimized for handling special problems and this is the basic reason why remote sensing can be utilized with the present state of the technology. Today's paper discusses a particular problem - the remote analysis of simple gases.
Stanley M. Klainer,
"Advances In Remote Gas Analysis Using Fabry-Perot Techniques", Proc. SPIE 0049, Impact of Lasers in Spectroscopy, (1 March 1974); doi: 10.1117/12.954094; https://doi.org/10.1117/12.954094