Which material reflects infrared radiation the best?

Infrared light is best reflected by aluminum foil and snow. Aluminum foil reflects the light which reduces heat loss through whatever material it is…

What other materials are needed for the application of infrared radiation?

Some materials can be used for either IR or visible applications, most notably fused silica, BK7 and sapphire; however, the performance of an optical system can be optimized by using materials better suited to the task at hand.

Does plastic absorb infrared radiation?

Just like visible light, a part of the broad infrared radiation spectrum is reflected from the surface of the material while the rest is either absorbed within the material or passes through the material. For instance, plastics generally absorb infrared radiation in the wavelength range above 2 μm.

What Colour of material does not reflects infrared radiation?

Darker colors absorb the visible wavelengths in sunlight, not IR rays. Therefore, the color of the material is unimportant in the ability of a material to absorb infrared light.

What are the materials that absorb most infrared light?

The common materials I found that best absorbed IR light are rubbery matte-black substances. Spray-on rubbery substances like Plastidip and Flexidip also worked well.

Are there any materials that are transparent to IR?

A quick search did not prove very fruitful. Glass is not transparent to IR, as you can see in the man’s glasses in the picture above, as well as at 0:20 in this video. However, at 0:52 in the same video you can see that glass does reflect IR to some extent (when the hand is on the same side as the glass).

Is it true that glass absorbs IR light?

However, at 0:52 in the same video you can see that glass does reflect IR to some extent (when the hand is on the same side as the glass). As we’ve seen, the absorbance of light depends very much on the wavelength, so first you would need to figure out which wavelengths the opponent’s IR LED would output.

What kind of light absorbs 99.75% of it?

Right: At just the right temperature (light blue line), the reflectivity of the device drops almost to zero (99.75% absorbance) for infrared light at a wavelength of 11.6 µm. Courtesy of Mikhail Kats.