Metal-oxide-SiO2 composite ZnO lasers

Eunice S.P. Leong; S. F. Yu; M. K. Chong; O. K. Tan; K. Pita

doi:10.1109/LPT.2005.853010

Metal-oxide-SiO₂ composite ZnO lasers

Eunice S.P. Leong^*, S. F. Yu, M. K. Chong, O. K. Tan, K. Pita

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The use of metal-oxide-SiO₂ composite to sustain random lasing in ZnO thin films is proposed. It is shown that the presence of stripe pattern in the metal-oxide-SiO₂ composite is necessary to minimize lasing threshold and achieve directional emission. By controlling the concentration of the metal-oxide and stripe spacing, coherent lasing threshold and linewidth of ∼85 kW/cm² and ∼0.4 nm, respectively, can be obtained from mirrorless ZnO thin-film waveguide lasers.

Original language	English
Pages (from-to)	1815-1817
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	17
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2005.853010
Publication status	Published - Sept 2005
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Keywords

Nanocomposite
Random lasing
Sol-gel waveguide
Zinc oxide

Access to Document

10.1109/LPT.2005.853010

Cite this

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title = "Metal-oxide-SiO2 composite ZnO lasers",

abstract = "The use of metal-oxide-SiO2 composite to sustain random lasing in ZnO thin films is proposed. It is shown that the presence of stripe pattern in the metal-oxide-SiO2 composite is necessary to minimize lasing threshold and achieve directional emission. By controlling the concentration of the metal-oxide and stripe spacing, coherent lasing threshold and linewidth of ∼85 kW/cm2 and ∼0.4 nm, respectively, can be obtained from mirrorless ZnO thin-film waveguide lasers.",

keywords = "Nanocomposite, Random lasing, Sol-gel waveguide, Zinc oxide",

author = "Leong, \{Eunice S.P.\} and Yu, \{S. F.\} and Chong, \{M. K.\} and Tan, \{O. K.\} and K. Pita",

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T1 - Metal-oxide-SiO2 composite ZnO lasers

AU - Leong, Eunice S.P.

AU - Yu, S. F.

AU - Chong, M. K.

AU - Tan, O. K.

AU - Pita, K.

PY - 2005/9

Y1 - 2005/9

N2 - The use of metal-oxide-SiO2 composite to sustain random lasing in ZnO thin films is proposed. It is shown that the presence of stripe pattern in the metal-oxide-SiO2 composite is necessary to minimize lasing threshold and achieve directional emission. By controlling the concentration of the metal-oxide and stripe spacing, coherent lasing threshold and linewidth of ∼85 kW/cm2 and ∼0.4 nm, respectively, can be obtained from mirrorless ZnO thin-film waveguide lasers.

AB - The use of metal-oxide-SiO2 composite to sustain random lasing in ZnO thin films is proposed. It is shown that the presence of stripe pattern in the metal-oxide-SiO2 composite is necessary to minimize lasing threshold and achieve directional emission. By controlling the concentration of the metal-oxide and stripe spacing, coherent lasing threshold and linewidth of ∼85 kW/cm2 and ∼0.4 nm, respectively, can be obtained from mirrorless ZnO thin-film waveguide lasers.

KW - Nanocomposite

KW - Random lasing

KW - Sol-gel waveguide

KW - Zinc oxide

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