Growth and Optical Characterization of CdI2 Single Crystals

✍ Scribed by G. Ajithkumar; Dr. M. A. Ittyachen; Dr. S. K. Chaudhary; Dr. N. V. Unnikrishnan

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 236 KB
• Volume: 32
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.2170320519

✦ Synopsis

Abstract

Single crystals of CdI~2~ were grown by employing the horizontal zone refining method. Emission spectra of these crystals were recorded at room temperature and liquid nitrogen temperature. Various emission parameters such as optical gain coefficient, lifetime, gain, stimulated emission cross section were evaluated for the various emission components. The results show high gain at low temperature whereas very low value at rmm temperature. This has been explained by invoking the existence of self trapped excitons in the crystal.