Generating intense ultrashort pulses with high spatial quality has opened up possibilities for ultrafast and strong-field science. It is so important that the Nobel Prize in Physics 2018 was given to Dr. Strickland and Dr. Mourou for inventing a technique called chirped pulse amplification, which drives numerous ultrafast lasers worldwide. With the great advancement in the last decade, Yb-based ultrafast lasers have become highly popular, because they exhibit exceptional thermal efficiency, are low in cost and are highly flexible in adjusting pulse energies and repetition rates.
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Source: Phys.org