標題: A highly efficient graphene oxide absorber for Q-switched Nd:GdVO4 lasers
作者: Wang, Yong Gang
Chen, Hou Ren
Wen, Xiao Ming
Hsieh, Wen Feng
Tang, Jau
光電工程學系
光電工程研究所
Department of Photonics
Institute of EO Enginerring
公開日期: 11-Nov-2011
摘要: We demonstrated that graphene oxide material could be used as a highly efficient saturable absorber for the Q-switched Nd:GdVO4 laser. A novel and low-cost graphene oxide (GO) absorber was fabricated by a vertical evaporation technique and high viscosity of polyvinyl alcohol (PVA) aqueous solution. A piece of GO/PVA absorber, a piece of round quartz, and an output coupler mirror were combined to be a sandwich structure passive component. Using such a structure, 104 ns pulses and 1.22 W average output power were obtained with the maximum pulse energy at 2 mu J and a slope efficiency of 17%.
URI: http://dx.doi.org/10.1088/0957-4484/22/45/455203
http://hdl.handle.net/11536/150411
ISSN: 0957-4484
DOI: 10.1088/0957-4484/22/45/455203
期刊: NANOTECHNOLOGY
Volume: 22
Appears in Collections:Articles