Title :
Generation and application of femtosecond X-rays from a synchrotron
Author :
Schoenlein, R.W. ; Chong, H.H.W. ; Glover, T.E. ; Heimann, P.A. ; Shank, C.V. ; Zholents, A.A. ; Zolotorev, M.S.
Author_Institution :
Mater. Sci. Div., Ernest Orlando Lawrence Berkeley Nat. Lab., CA, USA
Abstract :
We demonstrate a novel scheme for generating ultrashort pulses of synchrotron radiation. Our approach is to create femtosecond time-structure on a long electron bunch by using a femtosecond laser pulse to modulate the energy of an ultrashort slice of the bunch Femtosecond synchrotron pulses are directly measured from a bend-magnet beamline at the Advanced Light Source (ALS). The measured pulse duration is determined by the storage ring dispersion integrated from the wiggler to the radiation bend-magnet. A new beamline, dedicated to ultrafast X-ray spectroscopy is currently under construction at the ALS and will provide X-ray pulses of <100 fs duration. The femtosecond time structure is invariant over the entire spectral range of bend-magnet emission from the near infrared to the X-ray regime, making this a powerful tool for femtosecond X-ray spectroscopy
Keywords :
X-ray production; X-ray spectroscopy; high-speed techniques; particle beam bunching; storage rings; synchrotron radiation; wigglers; Advanced Light Source; bend-magnet beamline; energy modulation; femtosecond X-ray generation; femtosecond laser pulse; femtosecond time-structure; long electron bunch; storage ring; synchrotron radiation; ultrafast X-ray spectroscopy; ultrashort pulses; wiggler; Electron beams; Optical modulation; Optical pulse generation; Optical pulses; Pulse measurements; Pulse modulation; Ring lasers; Spectroscopy; Synchrotron radiation; X-ray lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.968908