Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Differentiation of CO isotopic variants by frequency tuning a terahertz source

Not Accessible

Your library or personal account may give you access

Abstract

The transmission spectra of two CO isotopic variants, i.e., CO12 and CO13, are measured with a recently developed widely tunable THz source. The pure rotational transition lines of J=67, 1011, 1112, 1213, and 1314 have been identified in the spectra. The transition frequencies and the rotational constant of each CO isotopic variant are also presented. Experimental results indicate that the difference of the rotational constants between the two isotopic variants can be used to reliably differentiate CO12 and CO13. Compared with the measurements made by using a Fourier transform infrared spectrometer, our tunable THz source has produced approximately the same accuracies for measuring transition frequencies or determining rotational constants.

© 2007 Optical Society of America

Full Article  |  PDF Article
More Like This
Line strengths and self-broadening of pure rotational lines of carbon monoxide measured by terahertz time-domain spectroscopy

Weston Aenchbacher, Mira Naftaly, and Richard Dudley
Appl. Opt. 49(13) 2490-2496 (2010)

Analysis of isotopic CO2 mixtures by laser photoacoustic spectroscopy

I. G. Calasso, V. Funtov, and M. W. Sigrist
Appl. Opt. 36(15) 3212-3216 (1997)

Stable isotopic analysis of atmospheric methane by infrared spectroscopy by use of diode laser difference-frequency generation

Michael E. Trudeau, Pin Chen, Guilherme de Andrade Garcia, Leo W. Hollberg, and Pieter P. Tans
Appl. Opt. 45(17) 4136-4141 (2006)

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 (6)

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 (2)

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 (1)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved