USA As Represented by Secretary of the Navy

George Mason Intellectual Properties, Inc.

Richard G S Pong

James S Shirk

Steven R Flom

Arthur W Snow

Eva M Maya

Steven R Carlo

High concentrations of dye may be prepared in combination with thermoplastic polymers and used in optical polymers as monomeric and dimeric molecular solutions. The method of preparing high concentration levels allows the control over the aggregation of dye molecules that is required to maintain effective nonlinear operation. The present invention is applicable to many systems and is essential to the successful production of working optical limiting devices and other optically transparent polymeric devices, as well as other photonic applications, such as nonlinear optics.

Fabricating polymers for optical devices

The present invention is phthalocyanine compounds with peripheral siloxane substitution, as well as methods for making these compounds and various uses thereof, having the basic structure: wherein

Phthalocyanines with peripheral siloxane substitution

The invention provides an optical filter comprising: The substrate may be a UV-transparent nanoporous silica glass solid having pores that are substantially filled with a UV-transparent solvent, which has been selected to dissolve said dye and also to match the refractive index of the nanoporous silica glass solid. Alternatively, the substrate may be a UV-transparent inorganic salt compressed to form a solid body. The invention also provides for methods of making these embodiments and an optical device comprising such an optical filter. The filter provides an efficient solar blind filter that is chemically and dimensionally stable.

Optical filter comprising solar blind dyes and UV-transparent substrates

The present invention is phthalocyanine compounds with peripheral siloxane substitution, as well as methods for making these compounds and various uses thereof, having the basic structure:wherein

The invention provides an optical filter comprising:

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Silver Spring, MD, United States of America

Richard G S Pong