Improve growth rate of Smith-Purcell free-electron laser by Bragg reflector
- Institute for Laser Technology, Suita, Osaka 565-0871 (Japan)
- Institute of High Energy Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)
- Department of Electronics, Information and Communication Engineering, Osaka Sangyo University, Osaka 574-8530 (Japan)
- Department of Pure and Applied Physics, Faculty of Engineering Science, Kansai University, Osaka 64-8680 (Japan)
- Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
- Laboratory of Advanced Science and Technology for Industry, University of Hyogo, Ako, Hyogo 678-1205 (Japan)
Grating with Bragg reflectors for the Smith-Purcell free-electron laser is proposed to improve the reflection coefficient, resulting in enhancing the interaction of the surface wave with the electron beam and, consequently, relax the requirements to the electron beam. With the help of particle-in-cell simulations, it has been shown that the usage of Bragg reflectors may improve the growth rate, shorten the time for the device to reach saturation, and lower the start current for the operation of a Smith-Purcell free-electron laser.
- OSTI ID:
- 21518451
- Journal Information:
- Applied Physics Letters, Vol. 98, Issue 21; Other Information: DOI: 10.1063/1.3594243; (c) 2011 American Institute of Physics; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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