Large Area Nanostructred Antirefelction Coatings for EO/IR Sensor Applications

A.K. Sood, R.E. Welser, A.W. Sood, G. Petuhraja, E.F. Schubert, N.K. Dhar
Magnolia Optical Technologies Inc., US

Keywords: nanostructures, EO/IR sensors, optical coatings

Summary:

EO/IR Nanosensors are being developed for a variety of Defense and Commercial Systems Applications. These include UV, Visible, NIR, MWIR and LWIR Sensors (1, 2, 3,). One of the critical technologies that will enhance the EO/IR sensor performance is the development of high quality nanostructure based antireflection coatings. We will discuss our modeling approach and experimental results for using oblique angle nanowires growth technique for extending the application for UV, Visible and IR sensors and their utility for longer wavelength application. The AR coating is designed by using a genetic algorithm and fabricated by using oblique angle deposition. The AR coating is designed for the wavelength range of 400 nm to 2500 nm