Potential uses of chromium(III)-doped transparent glass ceramics in tunable lasers and luminescent solar concentrators

Renata Reisfeld*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

The successful operation of alexandrite as a room temperature tunable laser arises from the fact that chromium exists in these crystals at a low crystal field. A similar situation has been found in chromium(III)-doped glass ceramics prepared by Buch and Ish-Shalom. The 4T24A2 splitting becomes comparable with or smaller than the separation to the 2E → 4A2 level, and as a result a broad band four-level laser system can be obtained. In addition, 4T24A2 luminescence in some of the glass ceramics doped with chromium is of extremely high quantum yield; this makes such materials suitable candidates for luminescence solar concentrators which concentrate solar light on small areas, thereby enabling the cost of photovoltalic electricity to be reduced. The theory of tunable lasers and luminescent solar concentrators is outlined.

Original languageEnglish
Pages (from-to)375-382
Number of pages8
JournalMaterials Science and Engineering
Volume71
Issue numberC
DOIs
StatePublished - May 1985

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