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Quantum field theoretical relationship between the axial spontaneous emission and the laser gain, and its application to the free-electron two-quantum stark-emission laser

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Il Nuovo Cimento B (1971-1996)

Summary

The relationship between the axial spontaneous emission and the laser gain is obtained by means of quantum field theory. Using the relationship, the spontaneous two-quantum Stark emission in the beam direction by a relativistic electron beam and in an electrostatic wave propagating in the antiparallel direction of the electron beam («electric wiggler») is derived from the laser gain by the stimulated free-electron two-quantum Stark emission. It is found that the spontaneous-emission power per unit solid angle in the axial direction scales as

, whereE b is the beam energy and

andλ ω are the field amplitude and wiggler wavelength of the electric wiggler, respectively.

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References

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Authors and Affiliations

  1. Department of Physics, University of Texas at Arlington, P.O. Box 19059, 76019, Arlighton, TX, USA

    S. H. Kim

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  1. S. H. Kim
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Kim, S.H. Quantum field theoretical relationship between the axial spontaneous emission and the laser gain, and its application to the free-electron two-quantum stark-emission laser. Nuov Cim B 107, 605–610 (1992). https://doi.org/10.1007/BF02723637

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  • DOI: https://doi.org/10.1007/BF02723637

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