Coherent and tunable radiation with power enhancement from surface plasmon polaritons*
Gong Sen†, Zhong Ren-Bin, Hu Min, Chen Xiao-Xing, Zhang Ping, Zhao Tao, Liu Sheng-Gang
       
The dependence of the maximum power enhancement at the optimized e-beam energy on the film thickness, the optimized e-beam energies are also labeled in the figure. The dielectric medium is BGO.