Importance

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Abstract

A barrier supported by an object, such as a satellite or missile for use in space, for scattering a coherent beam of electromagnetic radiation having a wavelength in a predetermined range of wavelengths which range is within, but does not necessarily fully include, the range of about 0.2 micron to about 11 microns and emanating from a distant source of such radiation. The barrier includes a non-metallic layer formed by a large number of first components and large number of second components with each of the second components spacing adjacent ones of the first components. The first components have a relative high index refraction and the second components have a relatively low index of refraction. The optical thickness of at least a majority of the first and second components is within an order of magnitude of the wavelength of the radiation and both of the components are transparent at the wavelength of the radiation. The layer has a thickness between 0.2 micron and 1000 microns. A method of protecting the object is also disclosed.

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First Claim