Three-Dimensionally Confined Optical Modes in Quantum Well Microtube Ring Resonators

Details Three-Dimensionally Confined Optical Modes in Quantum Well Microtube Ring Resonators Three-Dimensionally Confined Optical Modes in Quantum Well Microtube Ring Resonators

2007-04-30

arxiv.org/abs/0704.3971v1

Physics

Condensed Matter

Other Condensed Matter

5 pages, 4 figures

Scientific paper

10.1103/PhysRevB.76.045303

We 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.

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