High Resolution High Temperature Spectral Line Position Measurements Of Carbon Dioxide In The Fifteen Micron Spectral Region

Michael Hoke; Mark Esplin

doi:10.1117/12.969567

1 December 1989 High Resolution High Temperature Spectral Line Position Measurements Of Carbon Dioxide In The Fifteen Micron Spectral Region

Michael Hoke, Mark Esplin

Author Affiliations +

Proceedings Volume 1145, 7th Intl Conf on Fourier Transform Spectroscopy; (1989) https://doi.org/10.1117/12.969567
Event: Seventh International Conference on Fourier and Computerized Infrared Spectroscopy, 1989, Fairfax, VA, United States

Abstract

Low pressure (5 Torr), high temperature (800K) gas samples of carbon dioxide have recently been studied using the high resolution interferometer and high temperature absorption cell at the Air Force Geophysics Laboratory. Our line position measurements, for the principal isotope, in the fifteen micron spectral region not only extend to high rotational quantum number many rotational vibrational bands which have been measured previously at room temperature, but also include previously unmeasured vibrational bands. Band identification and analyses of the dense spectra has been enhanced by the development of a modified Loomis-Wood graphical technique. This new graphical technique has made it easier to identify spectral lines of bands for which rotational constants are approximately known and to estimate improved values of the rotational constants once lines of the band under study are identified. Rotational constants from the Direct Numerical Diagonalization (DND) calculations of Wattson and Rothman have been found to be in good agreement with those determined from the data. The theoretical values were very useful in band assignment of spectral lines. The predictive power of the theoretical DND technique combined with the new graphical technique permitted the identification and analyses of several weak and previously unmeasured vibrational bands.

Citation Download Citation

Michael Hoke and Mark Esplin "High Resolution High Temperature Spectral Line Position Measurements Of Carbon Dioxide In The Fifteen Micron Spectral Region", Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); https://doi.org/10.1117/12.969567

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available