2 October 1997 Preparation of radial GRIN material with low distributed dispersion by a sol-gel process
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Abstract
A radial gradient-index (r-GRIN) material with low distributed dispersion (T10 equals 0.003, V10 equals 340) was successfully prepared by sol-gel process in SiO2-TiO2BaO-K2O system. The r-GRIN lens with flat surfaces performed little chromatic aberration. Sol-gel synthesis process using metal salts to realize the r-GRIN materials with low distributed dispersion was investigated. The low distributed dispersion was achieved by convex distribution for barium and even distribution for titanium against silicon along a diameter. The sol-gel process enables to prepare r- GRIN materials which have necessary low distributed dispersion on demand.
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Hiroaki Kinoshita, Hiroaki Kinoshita, Morinao Fukuoka, Morinao Fukuoka, Yuko Morita, Yuko Morita, Hisashi Koike, Hisashi Koike, Satoshi Noda, Satoshi Noda, } "Preparation of radial GRIN material with low distributed dispersion by a sol-gel process", Proc. SPIE 3136, Sol-Gel Optics IV, (2 October 1997); doi: 10.1117/12.279161; https://doi.org/10.1117/12.279161
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