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.
Queneuille
J
J
Druon
F
F
Maksimchuk
A
A
Chériaux
G
G
Mourou
G
G
Nemoto
K
K