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We report the demonstration of over 30-J of uncompressed broadband energy, indicating the potential peak power in excess of 500-TW with high temporal-contrast around 1011 and a flat-toped spatial-profile with an ∼80 % filling factor.
Molecular ions of alkylphenols and cyclohexane were found to be produced more effectively with longer wavelength excitation. The cation resonance would enhance the fragmentation in femtosecond ionization of the organic molecules.
We have demonstrated over 30 J broadband output energy based on optical parametric chirped-pulse amplification (OPCPA) and Ti:sapphire chirped-pulse amplification (CPA), indicating potential for peak power of 500 TW with extremely high temporal contrast.
Highly efficient cavity dumping of Yb:YAG laser has been realized at room temperature with the optical to optical conversion efficiency of 72% for the absorbed pump power.
Multi-channel DFB dye laser with PMMA waveguide can cover a wavelength range 560-1100 nm. Wavelength switching can be done by changing the position of the pumping beam. Rapid thermal-switching of the laser wavelength was also demonstrated.
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