Optical Modes Excited by Evanescent-Wave-Coupled PbS Nanocrystals in Semiconductor Microtube Bottle Resonators

We report on optical modes in rolled-up microtube resonators that are excited by PbS nanocrystals filled into the microtube core. Long ranging evanescent fields into the very thin walled microtubes cause strong emission of the nanocrystals into the resonator modes and a mode shift after a self-remov...

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Veröffentlicht in:	Nano letters 2010-02, Vol.10 (2), p.627-631
Hauptverfasser:	Dietrich, Kay, Strelow, Christian, Schliehe, Constanze, Heyn, Christian, Stemmann, Andrea, Schwaiger, Stephan, Mendach, Stefan, Mews, Alf, Weller, Horst, Heitmann, Detlef, Kipp, Tobias
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Equipment Design Exact sciences and technology Lead - chemistry Materials science Materials Testing Nanocrystalline materials Nanoparticles - chemistry Nanoscale materials and structures: fabrication and characterization Nanotechnology - methods Optics and Photonics Physics Semiconductors Solvents - chemistry Sulfides - chemistry
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Zusammenfassung:	We report on optical modes in rolled-up microtube resonators that are excited by PbS nanocrystals filled into the microtube core. Long ranging evanescent fields into the very thin walled microtubes cause strong emission of the nanocrystals into the resonator modes and a mode shift after a self-removal of the solvent. We present a method to precisely control the number, the energy and the localization of the modes along the microtube axis.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl9036966