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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 5 — Mar. 3, 2008
  • pp: 3255–3260

Exponential growth, superradiance, and tunability of a seeded free electron laser

Juhao Wu, James B. Murphy, Xijie Wang, and Kelin Wang  »View Author Affiliations


Optics Express, Vol. 16, Issue 5, pp. 3255-3260 (2008)
http://dx.doi.org/10.1364/OE.16.003255


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Abstract

Exponential growth and superradiance regimes in a high-gain free electron laser (FEL) are studied in this paper for both a seeded FEL and a Self-Amplified Spontaneous Emission (SASE) FEL. The results are compared to the earlier superrdaince theory and the recent experimental observation. The influence of an initial energy chirp along the electron bunch on the superradiance mode is explored for the first time. With a short seed to increase the initial seed bandwidth, a tunable seeded FEL is possible.

© 2008 Optical Society of America

OCIS Codes
(140.2600) Lasers and laser optics : Free-electron lasers (FELs)
(140.3280) Lasers and laser optics : Laser amplifiers
(140.6630) Lasers and laser optics : Superradiance, superfluorescence
(320.1590) Ultrafast optics : Chirping
(320.5520) Ultrafast optics : Pulse compression

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 10, 2007
Revised Manuscript: January 11, 2008
Manuscript Accepted: January 13, 2008
Published: February 25, 2008

Citation
Juhao Wu, James B. Murphy, Xijie Wang, and Kelin Wang, "Exponential growth, superradiance, and tunability of a seeded free electron laser," Opt. Express 16, 3255-3260 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-5-3255


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References

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