Abstract

The ambient air pollutants ozone, nitric oxide, and ethylene have been monitored in the Pasadena area with a bistatic ir laser apparatus. These pollutants were measured with a differential absorption technique, using selected wavelengths in the 9.5-μm, 5.2-μm, and 10.5-μm regions, respectively. The transmitted laser radiation was detected using both direct and heterodyne detection techniques. In the direct detection case, cube corner retroreflectors provided the return, and the heterodyne detection responded to scattered radiation from various rough surfaces, ranging from 400 m to 1.9 km in distance from the apparatus. Significant departures from ambient background concentration levels were noticed in the region near a local freeway during periods of moderate and heavy traffic.

© 1976 Optical Society of America

Full Article  |  PDF Article
More Like This
Remote Atmospheric Sensing with an Airborne Laser Absorption Spectrometer

R. T. Menzies and M. T. Chahine
Appl. Opt. 13(12) 2840-2849 (1974)

Remote measurement of HCl, CH4, and N2O using a single-ended chemical-laser lidar system

E. R. Murray, J. E. van der Laan, and J. G. Hawley
Appl. Opt. 15(12) 3140-3148 (1976)

Air pollution monitoring with a Q-switched CO2-laser lidar using heterodyne detection

Stefan Lundqvist, Carl-Olof Fält, Ulf Persson, Bo Marthinsson, and Sverre T. Eng
Appl. Opt. 20(14) 2534-2538 (1981)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription