- AutorIn
- Marcel Wille
- Tom Michalsky
- Evgeny Krüger
- Marius Grundmann
- Rüdiger Schmidt-Grund
- Titel
- Absorptive lasing mode suppression in ZnO nano- and microcavities
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa2-235482
- Quellenangabe
- Applied Physics Letters Erscheinungsort: Melville
Verlag: American Institute of Physics
Erscheinungsjahr: 2016
Jahrgang: 109
Heft: 6
ISSN: 0003-6951
E-ISSN: 1077-3118
Artikelnummer: 061102 - Erstveröffentlichung
- 2016
- Abstract (EN)
- We conclusively explain the different lasing mode energies in ZnO nano- and microcavities observed by us and reported in literature. The limited penetration depth of usually used excitation lasers results in an inhomogeneous spatial gain region depending on the structure size and geometry. Hence, weakly or even nonexcited areas remain present after excitation, where modes are instantaneously suppressed by excitonic absorption. We compare the effects for ZnO microwires, nanowires, and tetrapod-like structures at room temperature and demonstrate that the corresponding mode selective effect is most pronounced for whispering-gallery modes in microwires with a hexagonal cross section. Furthermore, the absorptive lasing mode suppression will be demonstrated by correlating the spot size of the excitation laser and the lasing mode characteristic of a single ZnO nanowire.
- Andere Ausgabe
- Link zur Originalpublikation in Applied Physics Letters
Link: http://dx.doi.org/10.1063/1.4960660 - Freie Schlagwörter (EN)
- Nanoparticles, Nanowires, Photoluminescence, II-VI semiconductors, Carrier density
- Klassifikation (DDC)
- 530
- Verlag
- American Institute of Physics, Melville
- Publizierende Institution
- Universität Leipzig, Leipzig
- Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:15-qucosa2-235482
- Veröffentlichungsdatum Qucosa
- 06.08.2018
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch