title: Spatially and spectrally resolved quantum-path tracing in high-order harmonic generation.
abstract: We experimentally demonstrate the macroscopic evolution of quantum-path distributions in harmonic emission with spatial and spectral resolution from an argon gas jet, and obviously observe that the spatial profiles of harmonics are gradually split into two components (the red and blue shifts) when the driving laser intensity is increased. Moreover, the red and blue shifts in quantum-path distributions are experimentally traced and clarified in the spatial and spectral domain by choosing the focal position. These results give a more comprehensive understanding and therefore a better control of harmonic emission.
authors: Jiaming
authors: J
authors: Jiang
authors: Pengfei
authors: P
authors: Wei
authors: Zhinan
authors: Z
authors: Zeng
authors: Jing
authors: J
authors: Miao
authors: Yinghui
authors: Y
authors: Zheng
authors: Xiaochun
authors: X
authors: Ge
authors: Chuang
authors: C
authors: Li
authors: Ruxin
authors: R
authors: Li
authors: Zhizhan
authors: Z
authors: Xu