Optical properties of transparent Li{sub 2}O-Ga{sub 2}O{sub 3}-SiO{sub 2} glass-ceramics embedding Ni-doped nanocrystals

Journal Article · Mon Mar 28 00:00:00 EST 2005 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.1891272· OSTI ID:20637039

Suzuki, Takenobu; Murugan, Ganapathy Senthil; Ohishi, Yasutake ^[1]

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1. Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, 2-12-1, Hisakata, Tempaku-ku, Nagoya 468-8511 (Japan)

Transparent Li{sub 2}O-Ga{sub 2}O{sub 3}-SiO{sub 2} (LGS) glass-ceramics embedding Ni:LiGa{sub 5}O{sub 8} nanocrystals were fabricated. An intense emission centered around 1300 nm with the width of more than 300 nm was observed by 976 nm photoexcitation of the glass-ceramics. The lifetime was more than 900 {mu}s at 5 K and 500 {mu}s at 300 K. The emission could be attributed to the {sup 3}T{sub 2g}({sup 3}F){yields}{sup 3}A{sub 2g}({sup 3}F) transition of Ni{sup 2+} in distorted octahedral sites in LiGa{sub 5}O{sub 8}. The product of stimulated emission cross section and lifetime for the emission was about 3.7x10{sup -24} cm{sup 2} s and was a sufficiently practical value.

• OSTI ID: 20637039
• Journal Information: Applied Physics Letters, Vol. 86, Issue 13; Other Information: DOI: 10.1063/1.1891272; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
CROSS SECTIONS
DOPED MATERIALS
GALLIUM OXIDES
GLASS
INFRARED SPECTRA
LIFETIME
LITHIUM OXIDES
NANOSTRUCTURES
NICKEL IONS
OPACITY
SILICON OXIDES
STIMULATED EMISSION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0273-0400 K