aDepartment of Physics, Vigyan Bhavan, Devi Ahilya University, Khandwa Road, Indore 452017, India
bIIT, Delhi 110016, India
Abstract:
In this paper we analyse the spontaneous emission and gain spectrum of a waveguide free electron laser with betatron motion included in the analysis. The zero slippage condition and the small signal gain in the waveguide free electron laser is discussed.