Attosecond delay locking of large arm pump-probe system

Wang Ke-Jian; Teng Hao; Xing Xiao-Wei; Dong Shuo; Cao Kai-Qiang; Jiang Yu-Jiao; Zhao Kun; Zhu Jiang-Feng; Liu Wen-Jun; Wei Zhi-Yi

doi:10.7498/aps.73.20241061

Abstract

With the development of ultrafast science and attosecond laser technology, the pump-probe system based on isolated attosecond laser pulses is a key to attosecond science, which will be used to study electronic dynamics on an attosecond time-scale. To obtain stable and reliable signals, it is necessary to ensure ultra-stable and ultra-accurate synchronization. Any timing jitter can cause signal to disperse or get buryied in noise, making it impossible to obtain the true physical mechanism. Based on the above, the delay between pump laser pulse and probe laser pulse must be controlled with an attosecond time resolution. In this work, a dual-layer system is developed to achieve high-precision synchronization locking. To ensure that both layers have the same time jitter, we design an adapter to secure the elements placed during installation. Timing jitter is obtained by shaking interference fringes through fast Fourier transformation, and can be calculated in several ms. Then error signals are fed back to the PZT stage in order to compensate for real-time optical path drift. Through such a design, a time-delay accuracy of 7.64 as to 15.53 as is realized, which is linearly related to the interferometer arm length ranging from 1 m to 5 m, with an R² of 0.96. Moreover, the error between the experimental result of arm length of 8 m and 10 m and the result fitted with the above data is less than 3 as. These results show that using a small interferometer can achieve the fast detection of the time-delay accuracy of long-arm attosecond pump-probe detection system in large scientific instrument, which is of great significance in guiding ther applications such as in non-collinear attosecond streaking spectroscopy, time-resolved photoelectron spectroscopy, and coherent synthesis.

Keywords:

Authors and contacts

1.
School of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710071, China
2.
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
3.
School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
4.
School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
5.
Songshan Lake Materials Laboratory, Dongguan 523808, China

Corresponding author: Teng Hao, hteng@iphy.ac.cn ; Zhu Jiang-Feng, jfzhu@xidian.edu.cn ; Wei Zhi-Yi, zywei@iphy.ac.cn

Funds: Project supported by the National Key R&D Program of China (Grant No. 2022YFA1604200) and the National Natural Science Foundation of China (Grant No. 12034020).

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References

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图 1 实验装置示意图. BP1, 2为指向锁定镜, RM1—3为反射镜

Figure 1. Schematic layout of the experimental setup. BP1, 2 represents beampoint-locking mirror, RM1–3 represents reflect mirror.

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图 2 干涉条纹采集与反演结果　(a)干涉条纹; (b)纵向积分曲线; (c)频率谱

Figure 2. Interference fringe acquisition and inversion results: (a) Interference fringes; (b) longitudinal integration curve; (c) frequency density.

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图 3 延时抖动结果　(a)未锁定延时; (b)锁定延时; (c)延时锁定下的延时扫描

Figure 3. Results of delay-locking: (a) Unlocked time delay; (b) locked time delay; (c) the delay step scan with time delay locked.

DownLoad: Full-Size Img PowerPoint

图 4 不同臂长的锁定精度

Figure 4. Locked-delay accuracy of different arm lengths.

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map

[1]	Bloembergen N, Hall P 1999 Rev. Mod. Phys. 71 283 Google Scholar
[2]	Zewail A H 1988 Science 242 1645 Google Scholar
[3]	Hentschel M, Kienberger R, Spielmann C, Reider G A, Milosevic N, Brabec T, Corkum P, Heinzmann U, Drescher M, Krausz F 2001 Nature 414 509 Google Scholar
[4]	Zhao K, Zhang Q, Chini M, Wu Y, Wang X W, Chang Z H 2012 Opt. Lett. 37 3891 Google Scholar
[5]	Li J, Ren X M, Yin Y C, Zhao K, Chew A, Cheng Y, Cunningham E, Wang Y, Hu S Y, Wu Y, Chini M, Chang Z H 2017 Nat. Commun. 8 186 Google Scholar
[6]	Gaumnitz T, Jain A, Pertot Y, Huppert M, Jordan I, Ardana-Lamas F, Wörner H J 2017 Opt. Express 25 27506 Google Scholar
[7]	Witting T, Osolodkov M, Schell F, et al. 2022 Optica 9 145 Google Scholar
[8]	Wirth A, Hassan M Th, Grguraš I, et al. 2011 Science 334 195 Google Scholar
[9]	Dörner R, Mergel V, Jagutzki O, Spielberger L, Ullrich J, Moshammer R, Schmidt-Böcking H 2000 Phys. Rep. 330 95 Google Scholar
[10]	Cattaneo L, Pedrelli L, Bello R Y, Palacios A, Keathley P D, Martín F, Keller U 2022 Phys. Rev. Lett. 128 063001 Google Scholar
[11]	Eppink A T J B, Parker D H 1997 Rev. Sci. Instrum. 68 3477 Google Scholar
[12]	Stewart G A, Hoerner P, Debrah D A, Lee S K, Schlegel H B, Li W 2023 Phys. Rev. Lett. 130 083202 Google Scholar
[13]	Wang Y H, Steinberg H, Jarillo-Herrero P, Gedik N 2013 Science 342 453 Google Scholar
[14]	Wang J, Chen F M, Pan M J, et al. 2023 Opt. Express 31 9854 Google Scholar
[15]	Chen F M, Wang J, Pan M J, Liu J D, Huang J, Zhao K, Yun C, Qian T, Wei Z Y, Ding H 2023 Rev. Sci. Instrum. 94 043905 Google Scholar
[16]	Cavalieri A L, Müller N, Uphues Th, et al. 2007 Nature 449 1029 Google Scholar
[17]	江昱佼, 高亦谈, 黄沛, 赵昆, 许思源, 朱江峰, 方少波, 滕浩, 侯洵, 魏志义 2019 68 214204 Google Scholar Jiang Y J, Gao Y T, Huang P, Zhao K, Xu S Y, Zhu J F, Fang S B, Teng H, Hou X, Wei Z Y 2019 Acta Phys. Sin. 68 214204 Google Scholar
[18]	Vaughan J, Bahder J, Unzicker B, Arthur D, Tatum M, Hart T, Harrison G, Burrows S, Stringer P, Laurent G M 2019 Opt. Express 27 30989 Google Scholar
[19]	Li M X, Wang H Y, Li X K, Wang J, Zhang J D, San X Y, Ma P, Lu Y N, Liu Z, Wang C C, Yang Y, Luo S Z, Ding D J 2023 J. Electron Spectrosc. 263 147287 Google Scholar
[20]	Luo S J, Weissenbilder R, Laurell H, et al. 2023 Adv. Phys. X 8 2250105 Google Scholar
[21]	Cooley J W, Tukey J W 1965 Math. Comp. 19 297 Google Scholar

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Vol. 73, Issue 19 - 2024-10-05

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