Dou Yuhuan, Shu Xiaojian. Elliptical hole-coupling optical resonator in THz FEL[J]. High Power Laser and Particle Beams, 2013, 25: 1455-1459. doi: 10.3788/HPLPB20132506.1455
Citation:
Dou Yuhuan, Shu Xiaojian. Elliptical hole-coupling optical resonator in THz FEL[J]. High Power Laser and Particle Beams, 2013, 25: 1455-1459. doi: 10.3788/HPLPB20132506.1455
Dou Yuhuan, Shu Xiaojian. Elliptical hole-coupling optical resonator in THz FEL[J]. High Power Laser and Particle Beams, 2013, 25: 1455-1459. doi: 10.3788/HPLPB20132506.1455
Citation:
Dou Yuhuan, Shu Xiaojian. Elliptical hole-coupling optical resonator in THz FEL[J]. High Power Laser and Particle Beams, 2013, 25: 1455-1459. doi: 10.3788/HPLPB20132506.1455
Institute of Applied Physics and Computational Mathematics,P.O.Box 8009,Beijing 100094,China; 2.Terahertz Research Center,China Academy of Engineering Physics,Mianyang 621900,China
The scheme of elliptical hole-coupling optical resonator is proposed instead of circular hole-coupling resonator which is used in THz FEL in order to increase the output power and resonator quality. Three-dimensional simulations and design on elliptical hole-coupling optical resonator are carried out using our 3D OSIFEL code. It is proved that the elliptical hole-coupling optical resonator is effective and applicable for the THz FEL. Using elliptical hole-coupling optical resonator, the output power can be increased by more than 33%, and the coupling efficiency of resonator can be increased almost by 30%-70%. The superiority of elliptical hole-coupling optical resonator will be more prominent with radiation frequency increasing.
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