Lockheed Martin Corporation

The Penn State Research Foundation

University of Central Florida Research Foundation Inc

Jeffrey Linn Ruckman

Clara Rivero Baleine

Theresa S Mayer

Corey L Bungay

Andrew Swisher

Stephen R Tuenge

Benn H Gleason

Kathleen Richardson

Mechanisms for customizing a refractive index of an optical component are disclosed. In one example, sub-wavelength openings are formed in a top layer of anti-reflective (AR) material of an optical component to tailor transmission characteristics of the AR material over a range of angles of incidence and a range of wavelengths. In another example, sub-wavelength openings are formed at different filling fractions in the surface of the optical component.

Customizing the refractive index of a surface

Customizing the refractive index of a surface using two dimensional pattern of subwavelength openings

Ternary chalcogenide glass materials containing germanium can display enhanced properties compared to corresponding binary chalcogenide glass materials lacking germanium. For instance, ternary chalcogenide glass materials containing germanium, arsenic and selenium can exhibit improved Vickers micro-hardness values and other enhanced mechanical properties while still maintaining small changes in refractive index as function of temperature. Such ternary glass materials can have a formula of (AsSe)Ge, in which x ranges between about 1 and 5, y ranges between about 30 and 40, z ranges between about 60 and 70, and y+z=100. Methods for producing the ternary glass materials can include blending arsenic, selenium, and germanium as a melt, and cooling the melt to form the ternary glass material.

Ternary glass materials with low refractive index variability

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Orlando, FL, United States of America

Jeffrey Linn Ruckman