Factors affecting the formation of near infrared-emitting optical centers in Bi-doped glasses
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- Denker, B.I., Galagan, B.I., Osiko, V.V. et al. Appl. Phys. B (2010) 98: 455. doi:10.1007/s00340-009-3689-3
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The NIR-emitting optical centers in Bi2O3-doped MgO–Al2O3–SiO2 glass were shown to be bismuth dimers formed in a reversible endothermic redox chemical reaction. The reaction enthalpy and the effective dimer charge were determined. It was also brought out that the red (∼720 nm) emission band originates from the centers that are quite different from IR-emitting ones.