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

• Main Authors: Yu, S. F., Leong, Eunice S. P., Yang, H. Y., Lau, S. P., Chen, N. S., Yuen, Clement, Hng, Huey Hoon
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films
• Online Access: https://hdl.handle.net/10356/101962; http://hdl.handle.net/10220/18820
• Institution: Nanyang Technological University

Room-temperature ultraviolet lasing characteristics of ZnO thin-film ridge-waveguide random lasers with MgO capped layer fabricated on n-type s100d Si substrate are reported. It is demonstrated that highly directional emission from the facets of the random lasers can be achieved. Reduction of sca...