Low-loss and directional output ZnO thin-film ridge waveguide random lasers with MgO capped layer

Low-loss and directional output ZnO thin-film ridge waveguide random lasers with MgO capped layer

Room-temperature ultraviolet lasing characteristics of ZnO thin-film ridge-waveguide random lasers with MgO capped layer fabricated on n -type (100) Si substrate are reported. It is demonstrated that highly directional emission from the facets of the random lasers can be achieved. Reduction of scatt...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied physics letters 2005-01, Vol.86 (3), p.031112-031112-3
Hauptverfasser: Yuen, Clement, Yu, S. F., Leong, Eunice S. P., Yang, H. Y., Lau, S. P., Chen, N. S., Hng, H. H.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Room-temperature ultraviolet lasing characteristics of ZnO thin-film ridge-waveguide random lasers with MgO capped layer fabricated on n -type (100) Si substrate are reported. It is demonstrated that highly directional emission from the facets of the random lasers can be achieved. Reduction of scattering loss inside the random cavities can also be obtained. In addition, the improvement in the efficiency of the lasing characteristics of the random lasers by optical feedback is studied.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1850595