title: Spatial coherence control of xuv supercontinuum generation by two-color laser field.
abstract: We investigate the spatial characteristics of xuv supercontinuum generation in the two-color laser field consisting of a fundamental and a weak second harmonic field. By optimizing the synthesized two-color field, the spatial profile of the xuv supercontinuum varies from annular-like to Gaussian-like and then the spatial quality is improved effectively, which is beneficial for its potential applications. Moreover, our calculation shows that the spatial quality of the supercontinuum is stable when the intensity of the controlling field varies in the acceptable fluctuation.
authors.affiliation: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Shaoyi
authors.initials: S
authors.lastname: Wang
authors.forename: Weiyi
authors.initials: W
authors.lastname: Hong
authors.forename: Qingbin
authors.initials: Q
authors.lastname: Zhang
authors.forename: Kunlong
authors.initials: K
authors.lastname: Liu
authors.forename: Xiaosong
authors.initials: X
authors.lastname: Zhu
authors.forename: Peixiang
authors.initials: P
authors.lastname: Lu