| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9589460 | Journal of Molecular Spectroscopy | 2005 | 9 Pages |
Abstract
Velocity modulation spectroscopy has been investigated in the terahertz region, employing pure rotational transitions of ArH+ and rotation-tunneling transitions of H3O+ to study the competition between pressure broadening and Doppler broadening on the lineshapes, neutral suppression, and modulation efficiency. Velocity modulation is demonstrated to be effective to frequencies as low as 60Â cmâ1, yielding S/N values for ArH+ (770/1) that surpass published terahertz FM results by an order of magnitude.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Serena K. Stephenson, Richard J. Saykally,