TY - JOUR
T1 - Potential uses of chromium(III)-doped transparent glass ceramics in tunable lasers and luminescent solar concentrators
AU - Reisfeld, Renata
PY - 1985/5
Y1 - 1985/5
N2 - 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 4T2 → 4A2 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, 4T2 → 4A2 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.
AB - 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 4T2 → 4A2 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, 4T2 → 4A2 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.
UR - http://www.scopus.com/inward/record.url?scp=0021429397&partnerID=8YFLogxK
U2 - 10.1016/0025-5416(85)90256-3
DO - 10.1016/0025-5416(85)90256-3
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AN - SCOPUS:0021429397
SN - 0025-5416
VL - 71
SP - 375
EP - 382
JO - Materials Science and Engineering
JF - Materials Science and Engineering
IS - C
ER -