Luminescence of Cr{sup 4+}:Ca{sub 2}GeO{sub 4} films in the near infrared region

Journal Article · Fri Mar 31 04:00:00 EST 2000 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2000V030N03ABEH001700· OSTI ID:21442693

Gorshkov, O N; Zvonkov, N B; Maksimov, G A; Chigirinskii, Yu I ^[1]; Dianov, Evgenii M; Protopopov, V N ^[2]

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1. Scientific-Research Physicotechnical Institute at the Nizhnii Novgorod State University, Nizhnii Novgorod (Russian Federation)
2. Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)

The Cr{sup 4+}:Ca{sub 2}GeO{sub 4} films are produced on fused silica substrates by the method of RF magnetron sputtering. Both initial films and those annealed in air at temperatures below 700 {sup 0}C are amorphous. The films annealed at temperatures from 500 to 700 {sup 0}C exhibit luminescence in the wavelength range from 1200 to 1400 nm upon laser excitation at 980 nm, which suggests that they contain tetravalent chromium ions. (laser applications and other topics in quantum electronics)

• OSTI ID: 21442693
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 3 Vol. 30; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AIR
ANNEALING
CHARGED PARTICLES
CHROMIUM IONS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EMISSION
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
FILMS
FLUIDS
GASES
HEAT TREATMENTS
IONS
LUMINESCENCE
MAGNETRONS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
MINERALS
OXIDE MINERALS
PHOTON EMISSION
RF SYSTEMS
SILICA
SPUTTERING
SUBSTRATES
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
THIN FILMS
WAVELENGTHS