Abstract

A laser heterodyne spectrometer with a tunable diode laser as a local oscillator has been developed for ultrahigh resolution IR spectroscopy of the absorption spectra of trace constituents in the earth’s atmosphere. The spectral resolution and SNR of the developed system are 0.0013 cm−1 and ~500, respectively. This performance is sufficient for retrieving the altitude profile of atmospheric O3 through an inversion method. The altitude profile of atmospheric N2O has been also obtained for the first time with this laser heterodyne technique. The high resolution and high SNR have been accomplished by adopting a tunable diode laser which operates at liquid nitrogen temperature and by developing an effective technique to eliminate the optical feedback of the local oscillator laser beam.

© 1990 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Tunable diode-laser heterodyne spectrometer for remote observations near 8 μm

D. Glenar, T. Kostiuk, D. E. Jennings, D. Buhl, and M. J. Mumma
Appl. Opt. 21(2) 253-259 (1982)

Airborne Laser Infrared Absorption Spectrometer (ALIAS-II) for in situ atmospheric measurements of N2O, CH4, CO, HCL, and NO2 from balloon or remotely piloted aircraft platforms

David C. Scott, Robert L. Herman, Christopher R. Webster, Randy D. May, Gregory J. Flesch, and Elisabeth J. Moyer
Appl. Opt. 38(21) 4609-4622 (1999)

Tunable diode laser IR spectrometer for in situ measurements of the gas phase composition and particle size distribution of Titan’s atmosphere

Christopher R. Webster, Stanley P. Sander, Reinhard Beer, Randy D. May, Robert G. Knollenberg, Donald M. Hunten, and John Ballard
Appl. Opt. 29(7) 907-917 (1990)

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Figures (9)

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

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

Equations (6)

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

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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