High sensitivity and precision spectroscopy in the far infrared
Abstract
Absolute frequency determination with an accuracy of 10-9 and relative absorption sensitivity of 10-4 is obtained by the difference generation from stabilized CO2 lasers in a MIM diode (TuFIR). Applications to the detection of magnetic dipole transitions in atomic oxygen, to the LiH and LiD far infrared spectrum and to transient species like HO2 are reported. Precise measurements constitute tests for models of atoms and very light molecules and are extended to the analysis of collisional lineshapes.
- Publication:
-
The XIth International Conference on laser spectroscopy
- Pub Date:
- October 1993
- DOI:
- 10.1063/1.45044
- Bibcode:
- 1993AIPC..290..128I
- Keywords:
-
- 07.65.Gj;
- 35.80.+s;
- 42.62.Fi;
- Laser spectroscopy