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

Clement Yuen; Siu Fung Yu; Eunice S.P. Leong; H. Y. Yang; Shu Ping Lau; N. S. Chen; H. H. Hng

doi:10.1063/1.1850595

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

Clement Yuen, Siu Fung Yu, Eunice S.P. Leong, H. Y. Yang, Shu Ping Lau, N. S. Chen, H. H. Hng

Research output: Journal article publication › Journal article › Academic research › peer-review

54 Citations (Scopus)

Abstract

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.

Original language	English
Article number	031112
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	3
DOIs	https://doi.org/10.1063/1.1850595
Publication status	Published - 17 Jan 2005
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1850595

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abstract = "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.",

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AU - Lau, Shu Ping

AU - Chen, N. S.

AU - Hng, H. H.

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AB - 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.

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

Abstract

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