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29 March 2024
 
  » arxiv » arxiv.0704.3971

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Three-Dimensionally Confined Optical Modes in Quantum Well Microtube Ring Resonators
Ch. Strelow ; C. M. Schultz ; H. Rehberg ; H. Welsch ; Ch. Heyn ; D. Heitmann ; T. Kipp ;
Date 30 Apr 2007
Subject Other (cond-mat.other)
AbstractWe report on microtube ring resonators with quantum wells embedded as an optically active material. Optical modes are observed over a broad energy range. Their properties strongly depend on the exact geometry of the microtube along its axis. In particular we observe (i) preferential emission of light on the inside edge of the microtube and (ii) confinement of light also in direction of the tube axis by an axially varying geometry which is explained in an expanded waveguide model.
Source arXiv, arxiv.0704.3971
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