Laser-pulse-duration and spectral dependence of saturable absorption in graphene

Hongzhi Yang; Qian Wang; Wei Ji

doi:10.1117/12.910679

28 October 2011 Laser-pulse-duration and spectral dependence of saturable absorption in graphene

Hongzhi Yang, Qian Wang, Wei Ji

Proceedings Volume 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization; 82050J (2011) https://doi.org/10.1117/12.910679
Event: 2011 International Conference on Photonics, 3D-imaging, and Visualization, 2011, Guangzhou, China

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.

Citation Download Citation

Hongzhi Yang, Qian Wang, and Wei Ji "Laser-pulse-duration and spectral dependence of saturable absorption in graphene", Proc. SPIE 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization, 82050J (28 October 2011); https://doi.org/10.1117/12.910679

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