Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse

Takuya Matsubara; Yasuo Nabekawa; Kenichi L. Ishikawa; Kaoru Yamanouchi; Katsumi Midorikawa

doi:10.34133/2022/9858739

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Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse

Research Article | Updated：2024-10-22

- Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse
- 超快科学（英文） 2022年2卷第3期
- Affiliations：
  
  a Attosecond Science Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japanb Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japanc Department of Nuclear Engineering and Management, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japand Photon Science Center, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japane Research Institute for Photon Science and Laser Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-, Tokyo,ku,Japan,113-0033
- Author bio：
- Funds：
  
  This work was supported by the Core Research for Evolutional Science and Technology (JPMJCR15N1) of JST, the Center of Innovation Program (JPMJCE1313) of JST, a Grant-in-Aid for Specially Promoted Research (JP15H05696) from MEXT, Grants-in-Aid for Scientific Research (19H00869, 19H05628, 20H00371, 26247068, 20H05670) from MEXT, and the Quantum Leap Flagship Program (JPMXS0118068681, JPMXS0118067246) of MEXT, Japan.
- DOI：10.34133/2022/9858739
  中图分类号：
- 纸质出版日期：2022，
- Accepted：
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Takuya Matsubara, Yasuo Nabekawa, Kenichi L. Ishikawa, Kaoru Yamanouchi, Katsumi Midorikawa. 2022: Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse. 超快科学, 2022(3).

Takuya Matsubara, Yasuo Nabekawa, Kenichi L. Ishikawa, Kaoru Yamanouchi, Katsumi Midorikawa. 2022: Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse. Ultrafast Science, 2022(3).
Takuya Matsubara, Yasuo Nabekawa, Kenichi L. Ishikawa, Kaoru Yamanouchi, Katsumi Midorikawa. 2022: Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse. 超快科学, 2022(3). DOI： 10.34133/2022/9858739

Takuya Matsubara, Yasuo Nabekawa, Kenichi L. Ishikawa, Kaoru Yamanouchi, Katsumi Midorikawa. 2022: Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse. Ultrafast Science, 2022(3). DOI： 10.34133/2022/9858739

摘要

Attosecondattosecond science; extreme ultraviolet; high-order harmonic generation; Ramsey-type spectroscopy Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic PulseTime domain Ramsey-type interferometry is useful for investigating spectroscopic information of quantum states in atoms and molecules. The energy range of the quantum states to be observed with this scheme has now reached more than 20 eV by resolving the interference fringes with a period of a few hundred attoseconds. This attosecond Ramsey-type interferometry requires the irradiation of a coherent pair of extreme ultraviolet (XUV) light pulses

while all the methods used to deliver the coherent XUV pulse pair until now have relied on the division of the source of an XUV pulse in two before the generation. In this paper

we report on a novel technique to perform attosecond Ramsey-type interferometry by splitting an XUV high-order harmonic (HH) pulse of a sub-20 fs laser pulse after its generation. By virtue of the postgeneration splitting of the HH pulse

we demonstrated that the optical interference emerging at the complete temporal overlap of the HH pulse pair seamlessly continued to the Ramsey-type electronic interference in a helium atom. This technique is applicable for studying the femtosecond dephasing dynamics of electronic wavepackets and exploring the ultrafast evolution of a cationic system entangled with an ionized electron with sub-20 fs resolution.

Abstract

while all the methods used to deliver the coherent XUV pulse pair until now have relied on the division of the source of an XUV pulse in two before the generation. In this paper

关键词

attosecond scienceextreme ultraviolethigh-order harmonic generationRamsey-type spectroscopy Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse

Keywords

attosecond scienceextreme ultraviolethigh-order harmonic generationRamsey-type spectroscopy Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse

references

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Hikosaka, Y., Kaneyasu, T., Wada, S. et al. Frequency-domain interferometry for the determination of time delay between two extreme-ultraviolet wave packets generated by a tandem undulator. Scientific Reports, 2023, 13(1): 10292. DOI:10.1038/s41598-023-37449-7.

Nabekawa, Y., Midorikawa, K. Analysis of attosecond entanglement and coherence using feasible formulae. Physical Review Research, 2023, 5(3): 033083. DOI:10.1103/PhysRevResearch.5.033083.

Li, J., Liu, Y. Hearing the Heartbeat of Atoms: Unveiling Attosecond Horizons. Ultrafast Science, 2023. DOI:10.34133/ultrafastscience.0049.

Li, Q., Xu, X., Wu, Y. et al. Generation of single circularly polarized attosecond pulses from near-critical density plasma irradiated by a two-color co-rotating circularly polarized laser. Optics Express, 2022, 30(22): 40063-40074. DOI:10.1364/OE.472982.

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