Chinese Physics C > 2009, Vol. 33 > Issue(S2): 139-141 DOI: 10.1088/1674-1137/33/S2/036

Design of a new compact THz source based on Smith-Purcell radiation

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Abstract：

In recent years, people are dedicated to the research work of finding compact THz sources with high emission power. Smith-Purcell radiation is qualified for the possibility of coherent enhancement due to the effect of FEL mechanism. The compact experiment device is expected to produce hundreds mW level THz ray. The electron beam with good quality is provided under the optimized design of the electron gun. Besides, the grating is designed as an oscillator without any external feedbacks. While the beam passes through the grating surface, the beam bunching will be strong and the second harmonics enhancement will be evident, as is seen from the simulation results.

References

[1]

. Smith S J, Purcell E M. Visible Light from Localized Sur-face Charges Moving across a Grating. Physical Review,1953, 92(4): 10692. ZHU X K, JIANG D K, GUO P L et al. Shanghai Electron Beam Ion Trap: Design and Current Status[C]. Journal ofPhysics: Conference Series, 2004, 2: 653. QIAN L. Study on the Performance of EBIT's Electron Beam, in Nuclear Technology Application. 2004, Shang-hai Institute of Applied Physics: Shanghai4. Hermann G J. Optical Theory of Thermal Velocity Effects in Cylindrical Electron Beams. Journal of Applied Physics,1958, 29: 127-1365. BEI H, DAI D D, DAI Z M. Simulation of Smith-PurcellRadiation from Compact Terahertz Source. High PowerLaser and Particle Beams, to be published

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DAI Dong-Dong, BEI Hua and DAI Zhi-Min. Design of a new compact THz source based on Smith-Purcell radiation[J]. Chinese Physics C, 2009, 33(S2): 139-141. doi: 10.1088/1674-1137/33/S2/036

DAI Dong-Dong, BEI Hua and DAI Zhi-Min. Design of a new compact THz source based on Smith-Purcell radiation[J]. Chinese Physics C, 2009, 33(S2): 139-141. doi:10.1088/1674-1137/33/S2/036 shu

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Received: 2009-01-05
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Design of a new compact THz source based on Smith-Purcell radiation

Corresponding author:DAI Zhi-Min,

Received Date:2009-01-05

Accepted Date:1900-01-01

Available Online:2009-01-08

Abstract:

In recent years, people are dedicated to the research work of finding compact THz sources with high emission power. Smith-Purcell radiation is qualified for the possibility of coherent enhancement due to the effect of FEL mechanism. The compact experiment device is expected to produce hundreds mW level THz ray. The electron beam with good quality is provided under the optimized design of the electron gun. Besides, the grating is designed as an oscillator without any external feedbacks. While the beam passes through the grating surface, the beam bunching will be strong and the second harmonics enhancement will be evident, as is seen from the simulation results.

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Design of a new compact THz source based on Smith-Purcell radiation

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通讯作者:陈斌, bchen63@163.com

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