Improvement of reverse-taper enhanced echo-enabled harmonic lasing at SXFEL

Weijie Fan; Kaiqing Zhang; Chao Feng; Lingjun Tu; Minghua Zhao

doi:10.1117/12.2665920

9 June 2023 Improvement of reverse-taper enhanced echo-enabled harmonic lasing at SXFEL

Weijie Fan, Kaiqing Zhang, Chao Feng, Lingjun Tu, Minghua Zhao

Author Affiliations +

Proceedings Volume 12581, X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation VI; 125810J (2023) https://doi.org/10.1117/12.2665920
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Conference Poster

Abstract

The harmonic lasing technique was proposed to extend the harmonic up-conversion number, and a reverse taper undulator was then adopted to enhance the performance of the harmonic lasing process. But in a typical experiment, energy spread always plays an essential role in the exponential gain of a high-gain free electron laser. In this paper, phase shifters are employed at the Shanghai Soft X-ray Free Electron Laser Facility to reduce the damage effect of the energy spread and avoid the degradation of the final FEL performances. Three-dimensional simulations are conducted to verify the feasibility of the phase shifters’ ability to prevent high energy spread and obtain FEL with superior coherence.

Citation Download Citation

Weijie Fan, Kaiqing Zhang, Chao Feng, Lingjun Tu, and Minghua Zhao "Improvement of reverse-taper enhanced echo-enabled harmonic lasing at SXFEL", Proc. SPIE 12581, X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation VI, 125810J (9 June 2023); https://doi.org/10.1117/12.2665920

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