Document Type
Patent
Publication Date
5-17-2016
Patent Number
9340446
CPC
C03C 4/0028 (2013.01)
Abstract
A refractive index device and method of making it include obtaining a glass structure comprising a plurality of nucleation sites. The glass structure is formed from a glass composition that comprises a first chemical component and a second chemical component. A crystal of the second chemical component has a different second refractive index from a first refractive index of the first chemical component. Each nucleation site defines where a crystal of the second chemical component can be grown. The method includes causing crystals of the second chemical component to grow in situ at a set of the plurality of nucleation sites in order to produce a spatial gradient of a refractive index in the glass structure.
Application Number
14/172175
Assignees
Lockheed Martin Corporation (Bethesda, MD, US) The Penn State Research Foundation (University Park, PA, US) Clemson University Research Foundation (Clemson, SC, US)
Filing Date
02/04/2014
Other/U.S. Class
C03B27/012; C03C4/00