Analysis of Three Frequency Undulator Intensity and Gain Due to off Axis Contribution in Free Electron Laser

摘要

In this study, researchers study the three frequency undulator radiation and free electron laser gain for higher harmonics with the inclusion of off axis contribution. When electron enters the field off axis it causes additional oscillations due to which intensity and gain reduction take place. To enhance the intensity and gain, researchers introduce a new scheme, i.e., the three frequency undulator scheme.