Spontaneous emission from free-electron lasers

Mark J. Schmitt

doi:10.1117/12.50597

1 December 1991 Spontaneous emission from free-electron lasers

Mark J. Schmitt

Author Affiliations +

Proceedings Volume 1552, Short-Wavelength Radiation Sources; (1991) https://doi.org/10.1117/12.50597
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Characteristics of the fundamental and harmonic emission from free-electron lasers (FELs) is examined in the spontaneous emission regime. The radiation at both odd and even harmonic frequencies is treated for electron beams with finite emittance and energy spread. For wigglers with many wiggle periods, calculation of the SE by integrating an ensemble of electrons along their exact trajectories becomes exceedingly cumbersome. Therefore, a different technique is used in which the far-field radiation pattern of a single electron is manipulated in transform space to include the effects of emittance. The effects of energy spread can be included by a weighted sum over the energy distribution. The program execution time for wigglers of arbitrary length is negligible. The transverse radiation patterns including the transverse frequency dependences, are given. How this radiation is modeled in FEL simulation codes is discussed.

Citation Download Citation

Mark J. Schmitt "Spontaneous emission from free-electron lasers", Proc. SPIE 1552, Short-Wavelength Radiation Sources, (1 December 1991); https://doi.org/10.1117/12.50597

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE