Compact cryogenically cooled Ti:Sapphire dual multi-kilohertz amplifiers for synchrotron radiation ultra-fast x-ray applications

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...

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Bibliographic Details
Published in:Review of scientific instruments 2013-05, Vol.84 (5), p.053111-053111
Main Authors: Feng, J., Nasiatka, J., Hertlein, M., Rude, B., Padmore, H.
Format: Article
Language:English
Subjects:
AMPLIFIERS
CRYSTALS
DOPED MATERIALS
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
KHZ RANGE
LENSES
PULSES
SAPPHIRE
SOLIDS
SYNCHROTRON RADIATION
TITANIUM
X RADIATION
X-RAY LASERS
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Summary: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 M2 factor of 1.02. The performance of the amplifier system is in excellent agreement with theoretical calculation.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4807375