Quasi-tunable I 2-laser for absorption measurements in the near infrared
Abstract
The properties and output data of an I 2-laser pumped by a pulsed dye laser have been investigated. The separation between lines to which the laser can be tuned in the region 1.0-1.3 μm is typically 0.5 cm -1. Lines are emitted in R-P doublets with a separation of 5-15 cm -1. The possibility of measuring low gas concentrations by recording the intensity ratio of the components in selected doublets has been tested in atmospheric water vapour.
- Publication:
-
Optics Communications
- Pub Date:
- April 1977
- DOI:
- 10.1016/0030-4018(77)90071-2
- Bibcode:
- 1977OptCo..21...33H
- Keywords:
-
- Absorption Spectroscopy;
- Infrared Lasers;
- Iodine Lasers;
- Near Infrared Radiation;
- Optical Pumping;
- Photoabsorption;
- Absorptance;
- Dye Lasers;
- Fluorescence;
- Frequency Control;
- Gas Spectroscopy;
- Line Spectra;
- Pulsed Lasers;
- Tuning;
- Lasers and Masers