Related Experiment Video
Updated: May 10, 2026
Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
Compact cryogenically cooled Ti:Sapphire dual multi-kilohertz amplifiers for synchrotron radiation ultra-fast x-ray
J Feng1, J Nasiatka, M Hertlein
1Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. fjun@lbl.gov
Abstract:
A titanium-doped sapphire regenerative dual-amplifier array operating at multi-kHz repetition rates has been developed for synchrotron radiation ultra-fast x-ray applications. The thermal lensing of the crystal in the amplifiers is virtually eliminated by cryogenic cooling of the laser crystal. The output energy of the amplifiers is measured to be greater than 2.6 mJ and the pulse length was compressed to less than 70 fs. The output laser mode is a near perfect Gaussian TEM00 with an M(2) factor of 1.02. The performance of the amplifier system is in excellent agreement with theoretical calculation.
