Glass composites having a gradient index of refraction and methods for production thereof

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United States of America Patent

PATENT NO 9969647
SERIAL NO

15157223

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Abstract

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Gradient refractive index (GRIN) materials can include multi-phase composites having substances with differing refractive indices disposed non-uniformly within one another. Particular glass composites having a gradient index of refraction can include: an amorphous phase, and a phase-separated region disposed non-uniformly within the amorphous phase. The glass composites include a mixture containing: GeZ2 and A2Z3 in a combined molar ratio of about 60% to about 95%, and CsX and PbZ in a combined molar ratio of about 5% to about 40%, where A is As, Sb or Ga, X is Cl, Br or I, and Z is S or Se. When A is As, the glass composites include PbZ in a molar ratio of about 15% or less. The amorphous phase and the phase-separated region have refractive indices that differ from one another. More particularly, A is Ga or As, X is Cl, and Z is Se.

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Patent Owner(s)

  • LOCKHEED MARTIN ENERGY, LLC; UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baleine, Clara Rivero Orlando, US 8 45
Richardson, Kathleen Geneva, US 6 19
Smith, Charmayne Winter Park, US 2 4

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