Polarization Engineering of Thermal Radiation Using Metallic Photonic Crystals

Advanced Materials (Impact Factor: 17.49). 09/2008; 20(17):3244 - 3247. DOI: 10.1002/adma.200703160


A nickel metallic photonic crystals (MPC) with only two layers were reported to have two highly enhanced thermal radiation (TR) peaks when a homogeneous backplane was added. The results show that the polymerization angles of two major peaks rotate counterclockwise in opposition to the rotation of the bottom layer of MPC. It is determined that peak P90a mainly originates from the enhancement of the intrinsic adsorption of nickel in the top and bottom layer while peak P90b results from the whole structure. An increase in height of rods in the top layer in the calculation of 90° MPC shows that P90c has a red-shift proportional to the height of rods in the top layer. The bottom layer contributes to increase the effective height of the top layer as the bottom layer has a structural component parallel to the top layer for the non-orthogonal structures.

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