Hannover 2003 – wissenschaftliches Programm
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Q: Quantenoptik
Q 49: Poster: Photonik
Q 49.11: Poster
Donnerstag, 27. März 2003, 16:30–18:30, Lichthof
Light Emitting Quantum Dots in Photonic Crystals — •Stefan Richter1, Stefan Schweizer1, Andrey Rogach2, Ralf Wehrspohn1, Martin Steinhart3, Margit Zacharias1, and Ulrich Goesele1 — 1Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, 06120 Halle — 2Ludwig-Maximilians-Universitaet Muenchen, Amalienstr. 54, 80799 Muenchen — 3Philipps-Universitaet Marburg, Hans-Meerwein-Str., 35032 Marburg
The incorporation of light emitters within photonic crystals (PCs) is of considerable interest to functionalize PCs and to investigate the modification of spontaneous emission, caused by the PC. HgTe quantum dots (QDs) show a very efficient emission in the near infrared. Therefore they are ideal broadband emitters in PCs based on silicon. A solution of polymers and colloidal HgTe QD is infiltrated by a wetting process to infiltrate the emitters into the PC. This incorporation method can be used to functionalize various types of PCs and is demonstrated for two dimensional PCs of macroporous silicon. Furthermore, this method allows a control of the emitter position within the PC or within a cavity. Controlling this position provides an efficient coupling of the emitted light to the modes of the PC or the cavity, represented by the localized density of states.