# Free-electron laser harmonic generation in an electromagnetic-wave wiggler and ion channel guiding

## Related Articles

- Improvement of nonlinear harmonics in free electron laser with planar wiggler. Bazouband, F.; Maraghechi, B. // Physics of Plasmas;Nov2012, Vol. 19 Issue 11, p113106
Spontaneous emission of free electron laser with planar wiggler and ion-channel guiding is calculated analytically and possibility of emission at up-shifted wiggler or ion-channel betatron frequency and their harmonics has been found. To investigate the nonlinear odd harmonics, a set of...

- The study of interaction of electrons with an electromagnetic wave in an undulator. Amatuni, A. Ts.; Petrossyan, M. L.; Petrossyan, B. V.; Ovsepyan, A. S.; Harutunyan, P. Ts.; Khachatryan, L. V. // Review of Scientific Instruments;Jul1989, Vol. 60 Issue 7, p1824
The results of an experimental investigation of electron beam spectral distribution after interaction with external electromagnetic waves in an undulator are given. The initial electron energy was 12 MeV, external electromagnetic wave power was 50 MW, the wavelength being 10 Î¼m. A helical...

- Threshold conditions for lasing of a free electron laser oscillator with longitudinal electrostatic wiggler. Sepehri Javan, N. // Physics of Plasmas;Dec2012, Vol. 19 Issue 12, p123106
The system of the nonlinear non-stationary equations describing spatial-temporal dynamics of the amplitudes of an ondulator radiation and a space-charge wave of a relativistic electron beam in the resonator is obtained. A free electron laser resonator with longitudinal electrostatic wiggler is...

- Parametric Optimization of Undulators for NSLS-II Project Beamlines. Chubar, O.; Bengtsson, J.; Berman, L.; Broadbent, A.; Cai, Y. Q.; Hulbert, S.; Shen, Q.; Tanabe, T. // AIP Conference Proceedings;6/24/2010, Vol. 1234 Issue 1, p37
General optimization procedure, computation methods used, and the obtained optimal parameters of undulators for the NSLS-II project beamlines are reported. The optimization starts with high-accuracy calculation of undulator magnetic fields, using Radia magnetostatics code, for a large set of...

- Experimental study of millimeter wave radiation from a rotating electron beam in a rippled magnetic field. Destler, W. W.; Aghamir, F. M.; Boyd, D. A.; Bekefi, G.; Shefer, R. E.; Yin, Y. Z. // Physics of Fluids (00319171);Jun85, Vol. 28 Issue 6, p1962
The generation of millimeter wave radiation from the interaction of a rotating electron beam (2 MeV, 1 kA, 5 nsec) with an azimuthally periodic wiggler magnetic field has been studied experimentally. Calculations of the effects of the wiggler magnetic field on the single particle electron orbits...

- Demonstration of a Novel Positron Source Based on a Plasma Wiggler. Johnson, D. K.; Blumenfeld, I.; Barnes, C. D.; Clayton, C. E.; Decker, F. J.; Deng, S.; Emma, P.; Hogan, M. J.; Huang, C.; Ischebeck, R.; Iverson, R.; Joshi, C.; Katsouleas, T. C.; Kirby, N.; Krejcik, P.; Lu, W.; Marsh, K. A.; Mori, W. B.; Muggli, P.; O’Connell, C. L. // AIP Conference Proceedings;2006, Vol. 877 Issue 1, p71
A new method for generating positrons has been proposed that uses betatron X-rays emitted by an electron beam in a high-K plasma wiggler. The plasma wiggler is an ion column produced by the head of the beam when the peak beam density exceeds the plasma density. The radial electric field of the...

- High gain amplifiers: Power oscillations and harmonic generation. Dattoli, G.; Ottaviani, P. L.; Pagnutti, S. // Journal of Applied Physics;8/1/2007, Vol. 102 Issue 3, p033103
We discuss the power oscillations in saturated high gain free electron laser amplifiers and show that the relevant period can be written in terms of the gain length. We use simple arguments following from the solution of the pendulum equation in terms of Jacobi elliptic functions. Nontrivial...

- Relativistic Raman backscattering in an electron beam with ion-channel guiding and its application in free-electron laser. Kordbacheh, A. A.; Maraghechi, B.; Farokhi, B.; Willett, J. E. // Physics of Plasmas;Nov2005, Vol. 12 Issue 11, p113106
A theory for Raman backscattering, in the rest frame of an electron beam with ion-channel guiding, is presented when the electrons are making small amplitude betatron oscillations. A relativistic theory of this problem is also presented when the electrons are moving through relativistic and...

- Conceptual design of quasiperiodic undulator. Sasaki, Shigemi; Kobayashi, Hideki; Takao, Masaru; Miyahara, Yoshikazu; Hashimoto, Shinya // Review of Scientific Instruments;Feb1995, Vol. 66 Issue 2, p1953
Presents a conceptual design for a quasiperiodic undulator which suppresses the rational harmonics of radiation. Basic equations of radiation; Creation of quasiperiodic lattice; Real array of magnets and electron trajectory.