Free-electron lasers without inversion: principles and proposed realizations

Marlan O. Scully; Yuri V. Rostovtsev

doi:10.1117/12.510728

28 January 2004 Free-electron lasers without inversion: principles and proposed realizations

Proceedings Volume 5194, Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors; (2004) https://doi.org/10.1117/12.510728
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The small-gain regime of free-electron lasers without inversion (FELWI) is considered and seeming contradictions with the traditional theory of FEL are resolved. As a result, a generalized Madey's theorem is obtained for the case of a phase shift given to electrons between the two wigglers. It explicitly demonstrates the contribution of interference of radiation from the wigglers. It is shown, by considering the motion in the phase-space, that Liouville's theorem applied to the motion of electrons in a two-dimensional (rather than one-dimensional) real space is consistent with a non-zero integral of the gain over electron energies. These conclusions are crucial for the achievement of orders-of-magnitude improvement in the FEL gain in the case of a large electron energy spread.

Citation Download Citation

Marlan O. Scully and Yuri V. Rostovtsev "Free-electron lasers without inversion: principles and proposed realizations", Proc. SPIE 5194, Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors, (28 January 2004); https://doi.org/10.1117/12.510728

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

Includes PDF, HTML & Video, when available