Berlin 2008 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 36: Poster III

HL 36.24: Poster

Wednesday, February 27, 2008, 16:30–19:00, Poster D

Thermal emission properties of 2D and 3D Photonic Crystals with and without functionalized surfaces — •Benjamin Gesemann, Stefan L. Schweizer, and Ralf B. Wehrspohn — MLU Halle-Wittenberg, Inst. for physics - AG microMD, Halle, Germany

We present measurements and simulations of the thermal emission properties inside and out of 2D and 3D photonic Crystals using localized integrated emission sources as well as out of plane emission of entirely heated crystals. The photonic crystals were fabricated using a photo-electrochemical etching process allowing us to fabricate deep 2D-structures with aspect ratios (depth/diameter) exceeding 100. By modulating the pore diameter during the etching also 3D-periodic structures can be prepared. Additional functionalized coatings can be used to modify the emission properties and create selective thermal emitter. We will discuss the influence of plasmonic and dielectric effects on selective thermal emission.