Publications by authors named "Han Bum Im"
Opt Express
December 2020
Article Synopsis
- The study analyzes angular dispersion in a nanosecond optical parametric chirped-pulse amplification (ns-OPCPA) amplifier used in multi-PW laser systems.
- It identifies wavefront rotation as a significant factor contributing to angular dispersion, overshadowing the effects of pulse front tilt.
- Experimental validation of the theory was achieved through measurements taken from the ns-OPCPA frontend in a 20-fs, 4-PW Ti:Sapphire laser, highlighting the need to control angular dispersion to maintain focus intensity in ultrahigh power lasers.
