2008/12/16 by Martina Hentschel, Tae-Yoon Kwon · 1 citation
Engineering · Physics and Astronomy · #Photonic and Optical Devices #Plasmonic and Surface Plasmon Research #Strong Light-Matter Interactions #physics.optics
paper · pdf · doi:10.1364/ol.34.000163
published as Opt. Lett. 34, 163 (2009) · 3 pages, 3 figures, to appear in Optics Letters
arxiv created 2008/12/16 · openalex publication_date 2009/01/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The availability of microlasers with highly directional far-field characteristics is crucial for future applications. To this end we study the far-field emission of active microcavities with a spiral shape using the Schrödinger-Bloch model. We find that they can provide directional emission under the conditions of (i) pumping along the resonator boundary and (ii) for specific resonator geometries. We systematically study the far-field characteristics under variation of the pumped area and the cavity geometry and identify a directionality optimized regime. Our results consistently explain previously obtained experimental results.