中国物理B ›› 2025, Vol. 34 ›› Issue (7): 73201-073201.doi: 10.1088/1674-1056/add1ba

所属专题: SPECIAL TOPIC — Ultrafast physics in atomic, molecular and optical systems

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Theory and applications of attosecond transient absorption spectroscopy: From atoms to solids

Ennan Cui1,2 and Difa Ye(叶地发)1,†   

  1. 1 National Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    2 Graduate School, China Academy of Engineering Physics, Beijing 100193, China
  • 收稿日期:2025-03-03 修回日期:2025-04-22 接受日期:2025-04-29 出版日期:2025-06-18 发布日期:2025-06-18
  • 通讯作者: Difa Ye E-mail:ye_difa@iapcm.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 12174034).

Theory and applications of attosecond transient absorption spectroscopy: From atoms to solids

Ennan Cui1,2 and Difa Ye(叶地发)1,†   

  1. 1 National Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    2 Graduate School, China Academy of Engineering Physics, Beijing 100193, China
  • Received:2025-03-03 Revised:2025-04-22 Accepted:2025-04-29 Online:2025-06-18 Published:2025-06-18
  • Contact: Difa Ye E-mail:ye_difa@iapcm.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 12174034).

摘要: This review comprehensively explores the theory and applications of attosecond transient absorption spectroscopy (ATAS) in studying ultrafast electronic dynamics across various systems, from atoms to solids. Driven by significant advancements in ultrafast laser technology, such as generating isolated attosecond pulses, ATAS enables detailed investigations of ultrafast electronic processes with unprecedented time resolution. The article introduces the fundamental principles and historical development of ATAS. Applications of ATAS are discussed in three main domains: in atoms, where it has been used to study build-up dynamics of Autler-Townes splitting, Fano resonance, light-induced states, etc.; in molecules, where it has revealed coherent molecular wavepacket dynamics and non-adiabatic dynamics near conical intersections; and in solids, where it has been extended to investigate ultrafast charge carrier dynamics in metals, semiconductors, and insulators. The review highlights the potential of ATAS in developing ultrafast optical switches and petahertz electronics. The ability of ATAS to probe and manipulate electronic dynamics at the attosecond timescale provides a powerful tool for exploring the fundamental limits of electronic and optical processes in materials.

关键词: attosecond transient absorption spectroscopy, response time, causality, petahertz electronics

Abstract: This review comprehensively explores the theory and applications of attosecond transient absorption spectroscopy (ATAS) in studying ultrafast electronic dynamics across various systems, from atoms to solids. Driven by significant advancements in ultrafast laser technology, such as generating isolated attosecond pulses, ATAS enables detailed investigations of ultrafast electronic processes with unprecedented time resolution. The article introduces the fundamental principles and historical development of ATAS. Applications of ATAS are discussed in three main domains: in atoms, where it has been used to study build-up dynamics of Autler-Townes splitting, Fano resonance, light-induced states, etc.; in molecules, where it has revealed coherent molecular wavepacket dynamics and non-adiabatic dynamics near conical intersections; and in solids, where it has been extended to investigate ultrafast charge carrier dynamics in metals, semiconductors, and insulators. The review highlights the potential of ATAS in developing ultrafast optical switches and petahertz electronics. The ability of ATAS to probe and manipulate electronic dynamics at the attosecond timescale provides a powerful tool for exploring the fundamental limits of electronic and optical processes in materials.

Key words: attosecond transient absorption spectroscopy, response time, causality, petahertz electronics

中图分类号:  (Atomic spectra?)

  • 32.30.-r
33.20.Xx (Spectra induced by strong-field or attosecond laser irradiation) 32.80.-t (Photoionization and excitation) 31.15.A- (Ab initio calculations)