Large Scale Broadband Moth-Eye Structures for Optical Signature Control in UV/IR Spectrum

Physical Optics Corporation (POC) proposes to develop Large Scale Moth-Eye (LSME) aircraft signature suppressing structures based on novel volume and surface relief holographic techniques. POC's proposed Moth-Eye structures are surface relief patterns that possess extremely broadband anti-reflective spectral characteristics. They can be generated over the majority of plastics, such as polycarbonate, polyurethane, and plexiglass with minimal optical distortion. In this Phase I program, POX will emboss moth-eye structures on appliques supplied by 3M's Automotive Design Systems Division. The large scale moth-eye appliques will meet the requirements of military specification MIL-P-3847A (USAF). This approach will enable POC to meet the environmental requirements and signature suppression needs of the Air Force. There are no toxic solvents, paints, or strippers involved in the embossing process. Phase I will determine the maximum achievable holographic master size and demonstrate the embossing process on 3M appliques. Phase II will lead to the in-depth fabrication of metal masters for rapid and inexpensive fabrication of stealth structures on appliques that are transferred to aircraft.