Transient absorption in a cadmium monoiodine laser discharge
Abstract
Transient absorption spectroscopy has been used to examine the active region of an ultraviolet-preionized, discharge pumped cadmium monoiodide ( 114CdI) laser. Having an active length of 50 cm and a gas mixture composed of He, N 2 and 114CdI 2 vapor, the discharge was probed by a short pulse (∼0.6 μs) Xe lamp in conjunction with an optical multichannel analyzer. In addition to the 5 3P → 6 3S 1 lines of Cd, CdH molecules were observed in absorption (X 2Σ → A 2Π) but not in emission. Also, a broad band exhibiting distinct undulatory structure and peaking near 454 nm is reported and tentatively attributed to CdI.
- Publication:
-
Optics Communications
- Pub Date:
- March 1985
- DOI:
- 10.1016/0030-4018(85)90169-5
- Bibcode:
- 1985OptCo..53..263G
- Keywords:
-
- Absorption Spectra;
- Cadmium Compounds;
- Gas Discharges;
- Gas Lasers;
- Iodine Lasers;
- Photoabsorption;
- Emission Spectra;
- Gas Mixtures;
- Helium;
- Nitrogen;
- Optical Pumping;
- Transient Response;
- Xenon Lamps;
- Lasers and Masers