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Title: Sensitization of neodymium ion luminescence by chromium ions in a Gd/sub 3/Ga/sub 5/O/sub 12/ crystal

An investigation is reported of the spectral, luminescence, and lasing properties of a Gd/sub 3/Ga/sub 5/O/sub 12/ crystal activated with chromium and neodymium ions. The high efficiency of the energy transfer process from chromium to neodymium ions is demonstrated. For example, the probability of an elementary Cr/sup 3 +/--Nd/sup 3 +/ interaction event in a Gd/sub 3/Ga/sub 5/O/sub 12/ crystal was 12 times higher than that in a Y/sub 3/Al/sub 5/O/sub 12/ crystal. It was found that sensitization of neodymium ion luminescence by chromium ions can increase severalfold the energy characteristics of cw and pulsed neodymium lasers. An investigation of the free-lasing parameters shows that the ultimate differential lasing efficiency of neodymium in a Gd/sub 3/Ga/sub 5/O/sub 12/:Cr:Nd crystal is 3.6 times higher than that for a YAG:Nd crystal under comparable conditions.
Authors:
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Publication Date:
OSTI Identifier:
5076330
Resource Type:
Journal Article
Resource Relation:
Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States); Journal Volume: 12:3
Research Org:
P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; NEODYMIUM LASERS; LASER MATERIALS; CATIONS; CHROMIUM IONS; CORRELATIONS; CRYSTALS; EFFICIENCY; ENERGY TRANSFER; FERRITE GARNETS; GADOLINIUM COMPOUNDS; ION IMPLANTATION; ION-ION COLLISIONS; LUMINESCENCE; NEODYMIUM IONS; PROBABILITY; STIMULATED EMISSION; CHARGED PARTICLES; COLLISIONS; EMISSION; ENERGY-LEVEL TRANSITIONS; ION COLLISIONS; IONS; LASERS; MATERIALS; MINERALS; RARE EARTH COMPOUNDS; SILICATE MINERALS; SOLID STATE LASERS; 420300* - Engineering- Lasers- (-1989)