Any material that reflects infra-red spectrum very efficiently ? And cheap
2006-09-20 20:31:51 · 3 answers · asked by Just_curious 4 in Science & Mathematics ➔ Physics
Polished metals are good IR reflectors, and of all the metals, gold is the best. The gold can be just a thin layer on top of a different material. Metallized mylar (e.g. an emergancy blanket) is a good IR reflector.
If you are near a university library, see if you can check out a copy of 'The Infrared Handbook' by Wolfe and Zissis. It will have graphs showing reflectivity versus wavelength for a wide variety of materials and surfaces.
2006-09-20 20:45:03 · answer #1 · answered by Mark V 4 · 0⤊ 0⤋
Aluminum foil.... essentially anything that reflects lights, since infra-red light is just very low wavelength light.
2006-09-21 03:37:54 · answer #2 · answered by cman 3 · 0⤊ 0⤋
aluminum foil? a mirror?
2006-09-21 03:37:55 · answer #3 · answered by Demiurge42 7 · 0⤊ 0⤋