The formation characteristics of closed-loop random cavities inside highly disordered ZnO polycrystalline thin films

Siu Fung Yu; H. D. Li; A. P. Abiyasa; Eunice S.P. Leong; Shu Ping Lau

doi:10.1063/1.2189908

The formation characteristics of closed-loop random cavities inside highly disordered ZnO polycrystalline thin films

Siu Fung Yu, H. D. Li, A. P. Abiyasa, Eunice S.P. Leong, Shu Ping Lau

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

14 Citations (Scopus)

Abstract

The formation characteristics of closed-loop random cavities inside highly disordered ZnO films with and without rib waveguide structure are investigated. The size dependence of the random cavities inside the random media on temperature and pump intensity profile is studied by applying Fourier transform to the corresponding lasing spectra. Simple rate equation analysis has revealed that the formation of the random cavities depends mainly on the profile of the optical gain, which is a function of the pump intensity profile and carrier diffusion length of the random media.

Original language	English
Article number	121126
Journal	Applied Physics Letters
Volume	88
Issue number	12
DOIs	https://doi.org/10.1063/1.2189908
Publication status	Published - 20 Mar 2006
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2189908

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abstract = "The formation characteristics of closed-loop random cavities inside highly disordered ZnO films with and without rib waveguide structure are investigated. The size dependence of the random cavities inside the random media on temperature and pump intensity profile is studied by applying Fourier transform to the corresponding lasing spectra. Simple rate equation analysis has revealed that the formation of the random cavities depends mainly on the profile of the optical gain, which is a function of the pump intensity profile and carrier diffusion length of the random media.",

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AU - Lau, Shu Ping

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AB - The formation characteristics of closed-loop random cavities inside highly disordered ZnO films with and without rib waveguide structure are investigated. The size dependence of the random cavities inside the random media on temperature and pump intensity profile is studied by applying Fourier transform to the corresponding lasing spectra. Simple rate equation analysis has revealed that the formation of the random cavities depends mainly on the profile of the optical gain, which is a function of the pump intensity profile and carrier diffusion length of the random media.

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The formation characteristics of closed-loop random cavities inside highly disordered ZnO polycrystalline thin films

Abstract

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