Patent ID: 8270081

Claim:
A method of reflecting electromagnetic radiation impinging on an object and thereby limiting heating within the interior of the object upon which the electromagnetic radiation is impinging, the method comprising the step of: forming on the surface of the object a plurality of layers of alternating materials, which form a plurality of stacks, each stack including a plurality of layered pairs of alternating materials, each layered pair of alternating materials in the stack including a first layer of a refraction material having a lower refractive index and a second layer of another refraction material having a higher refractive index, each of the stack's layers of lower index refraction material having a same, first thickness that is different from each other stack's lower index refraction material's thickness, each of the stack's layers of higher index refraction material having a same, second thickness that is different from each other stack's higher index refraction material's thickness, the thicknesses of each layer of the stack's lower index refraction material and each layer of the stack's higher index refraction material being selected so that the stack is tuned to reflect electromagnetic radiation at a predetermined resonant wavelength that is different from each other stack's predetermined resonant wavelength, the plurality of layered stacks, together, being reflective over a range of electromagnetic radiation wavelengths.