Polarization features of optically pumped CdS nanowire lasers

Journal article


Publication Details

Author(s): Roeder R, Ploß D, Kriesch A, Buschlinger R, Geburt S, Peschel U, Ronning C
Journal: Journal of Physics D-Applied Physics
Publication year: 2014
Volume: 47
Journal issue: 39
ISSN: 0022-3727


Abstract

High quality CdS nanowires suspended in air were optically pumped both below and above the lasing threshold. The polarization of the pump laser was varied while emission out of the end facet of the nanowire was monitored in a `head-on' measurement geometry. Highest pump-efficiency and most efficient absorption of the pump radiation are demonstrated for an incident electric field being polarized parallel to the nanowire axis. This polarization dependence, which was observed both above the lasing threshold and in the regime of amplified spontaneous emission, is caused by an enhanced absorption for parallel polarized optical pumping. Measured Stokes parameters of the nanowire emission reveal that due to the onset of lasing the degree of polarization rapidly increases from approximately 15 to 85%. Both Stokes parameters and degree of polarization of the nanowire lasing emission are independent of the excitation polarization. The transversal lasing mode is therefore not notably affected by the polarization of the pumping beam, although the supply with optical gain is significantly enhanced for an excitation polarization parallel to the nanowire axis.


FAU Authors / FAU Editors

Buschlinger, Robert
Institut für Optik, Information und Photonik
Kriesch, Arian
Professur für Experimentalphysik
Peschel, Ulf Prof. Dr.
Professur für Experimentalphysik
Ploß, Daniel
Institut für Optik, Information und Photonik


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


External institutions with authors

Friedrich-Schiller-Universität Jena


Research Fields

C Photonic and Optical Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Roeder, R., Ploß, D., Kriesch, A., Buschlinger, R., Geburt, S., Peschel, U., & Ronning, C. (2014). Polarization features of optically pumped CdS nanowire lasers. Journal of Physics D-Applied Physics, 47(39). https://dx.doi.org/10.1088/0022-3727/47/39/394012

MLA:
Roeder, Robert, et al. "Polarization features of optically pumped CdS nanowire lasers." Journal of Physics D-Applied Physics 47.39 (2014).

BibTeX: 

Last updated on 2019-21-07 at 08:07