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Wide bandwidth lasing randomly assembled ZnS/ZnO biaxial nanobelt heterostructures.

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Wide bandwidth lasing randomly assembled ZnS/ZnO biaxial nanobelt heterostructures.

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Title: Wide bandwidth lasing randomly assembled ZnS/ZnO biaxial nanobelt heterostructures.
Author: Yang, H. Y.; Yu, S. F.; Yan, J.; Zhang, L. D.
Copyright year: 2010
Abstract: Wide-bandwidth random lasing action is observed from the randomly assembled ZnS/ZnO biaxial nanobelt heterostructures under optical excitation. This is because optical gain at ultraviolet regime can be obtained from the near-band-edge radiative recombination of ZnS and ZnO. Surface defects related radiative recombination centers of ZnS and ZnO nanostructures also contribute to the visible optical gain. Hence, a broadband optical gain is obtained from the ZnS/ZnO biaxial nanobelt heterostructures. Moreover, a wide bandwidth coherent optical feedback can be achieved from the randomly assembled biaxial nanobelts due to high refractive index contrast between the nanobelts and air.
Subject: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics.
Type: Journal Paper
Series/ Journal Title: Applied physics letters
School: School of Electrical and Electronic Engineering
Rights: © 2010 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: http://dx.doi.org/10.1063/1.3393997.  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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