All-optical attosecond time domain interferometry
All-optical attosecond time domain interferometry作者机构：Wuhan National Laboratory for Optoelectronics and School of PhysicsHuazhong University of Science and Technology Hubei Key Laboratory of Optical Information and Pattern Recognition Wuhan Institute of Technology CAS Center for Excellence in Ultra-intense Laser Science
出 版 物：《National Science Review》 (国家科学评论(英文版))
年 卷 期：2021年第8卷第10期
页 面：15-22页
核心收录：
基 金：supported by the National Natural Science Foundation of China (11774111 and 91950202) the National Key Research and Development Program of China(2017YFE0116600) the Fundamental Research Funds for the Central Universities (2017KFYXJJ142) the International Cooperation Program of the Hubei Innovation Fund(2019AHB052) the Science and Technology Planning Project of Guangdong Province (2018B090944001)
主 题：interferometry attosecond all-optical precision measurement
摘 要：Interferometry, a key technique in modern precision measurements, has been used for length measurement in engineering metrology and astronomy. An analogous time-domain interferometric technique would represent a significant complement to spatial domain applications and require the manipulation of interference on extreme time and energy scales. Here, we report an all-optical interferometer using laser-driven high order harmonics as attosecond temporal slits. By controlling the phase of the temporal slits with an external field, a time domain interferometer that preserves both attosecond temporal resolution and hundreds of me V energy resolution is implemented. We apply this exceptional temporal resolution to reconstruct the waveform of an arbitrarily polarized optical pulse, and utilize the provided energy resolution to interrogate the abnormal character of the transition dipole near the Cooper minimum in argon. This novel attosecond interferometry paves the way for high precision measurements in the time-energy domain using all-optical approaches.
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