Ultrafast Science, Volume. 2, Issue 1, 9834102(2022)
Attosecond Delays of High-Harmonic Emissions from Hydrogen Isotopes Measured by XUV Interferometer
High-harmonic spectroscopy can access structural and dynamical information on molecular systems encoded in the amplitude and phase of high-harmonic generation (HHG) signals. However, measurement of the harmonic phase is a daunting task. Here, we present a precise measurement of HHG phase difference between two isotopes of molecular hydrogen using the advanced extreme-ultraviolet (XUV) Gouy phase interferometer. The measured phase difference is about 200 mrad, corresponding to ~3 attoseconds (
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Mumta Hena Mustary, Liang Xu, Wanyang Wu, Nida Haram, Dane E. Laban, Han Xu, Feng He, R. T. Sang, Igor V. Litvinyuk. Attosecond Delays of High-Harmonic Emissions from Hydrogen Isotopes Measured by XUV Interferometer[J]. Ultrafast Science, 2022, 2(1): 9834102
Category: Research Articles
Received: Jun. 28, 2022
Accepted: Sep. 18, 2022
Published Online: Sep. 28, 2023
The Author Email: Xu Liang (liangxu2021@usst.edu.cn), Sang R. T. (r.sang@griffith.edu.au), Litvinyuk Igor V. (i.litvinyuk@griffith.edu.au)