Coherent Control of High-Order Harmonics with Chirped Femtosecond Laser Pulses
Dong Gun LeeDepartment of Physics and Coherent X-ray Research Center, Korea Advanced Institute of Science and Technology, Taejon 305-701, KoreaJung‐Hoon KimDepartment of Physics and Coherent X-ray Research Center, Korea Advanced Institute of Science and Technology, Taejon 305-701, KoreaKyung-Han HongDepartment of Physics and Coherent X-ray Research Center, Korea Advanced Institute of Science and Technology, Taejon 305-701, KoreaChang Hee NamDepartment of Physics and Coherent X-ray Research Center, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea
2001en
ABI
Annotatsiya
High-order harmonics were coherently controlled using chirped femtosecond laser pulses for the production of sharp and strong harmonics. As the laser intensity was increased above the saturation intensity for optical-field ionization, the laser chirp needed to suppress harmonic chirp in the plateau region changed from positive to negative. We showed that the modification of a laser chirp condition in a rapidly ionizing medium should be included for the proper coherent control of high-order harmonics, necessitating the integral treatment of the interaction between atoms and a driving laser pulse.
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