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Proceedings Paper

Laser-pulse-duration and spectral dependence of saturable absorption in graphene
Author(s): Hongzhi Yang; Qian Wang; Wei Ji
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Paper Abstract

Predicted by fundamental theory to exhibit a broadband ultrafast saturable absorption, graphene has been demonstrated as a practical saturable absorber for mode-locking technology. Here, we report our investigation on the saturable absorption of graphene in the nanosecond and femtosecond regime. It is found that the saturation intensity of graphene is sensitive to the pulse duration and can be explained by a photodynamic model. In addition, the spectral dependence of saturation intensity in graphene is also presented.

Paper Details

Date Published: 28 October 2011
PDF: 5 pages
Proc. SPIE 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization, 82050J (28 October 2011); doi: 10.1117/12.910679
Show Author Affiliations
Hongzhi Yang, National Univ. of Singapore (Singapore)
Qian Wang, National Univ. of Singapore (Singapore)
Wei Ji, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 8205:
2011 International Conference on Photonics, 3D-Imaging, and Visualization
Egui Zhu, Editor(s)

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