Second-harmonic generation and wave-front correction of a terawatt laser system.
By combining second-harmonic generation and wave-front correction of a hybrid Ti:sapphire-Nd:glass terawatt laser chain, we were able to generate a focused intensity above 10(19) W/cm(2), with an estimated 10(9):1 intensity contrast ratio. The frequency of the laser is doubled by use of a type I KDP crystal, and wave-front correction is achieved with a deformable mirror coupled to a wave-front sensor.
J
J
Queneuille
F
F
Druon
A
A
Maksimchuk
G
G
Chériaux
G
G
Mourou
K
K
Nemoto