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Browsing by Author "Wen, Xiao Ming"

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    A highly efficient graphene oxide absorber for Q-switched Nd:GdVO(4) lasers
    (2011-11-11)
    Wang, Yong Gang
    ;
    Chen, Hou Ren
    ;
    Wen, Xiao Ming
    ;
    Hsieh, Wen Feng
    ;
    Tang, Jau
    We demonstrated that graphene oxide material could be used as a highly efficient saturable absorber for the Q-switched Nd:GdVO(4) 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%.
  • Thumbnail Image
    Item type:Item,
    A highly efficient graphene oxide absorber for Q-switched Nd:GdVO4 lasers
    (2011-11-11)
    Wang, Yong Gang
    ;
    Chen, Hou Ren
    ;
    Wen, Xiao Ming
    ;
    Hsieh, Wen Feng
    ;
    Tang, Jau
    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%.