2025:

• Bai, W. et al. Frequency stabilization of multiple continuous-wave lasers via a precision wavelength meter. Opt. Laser Technol. 189, 113076 (2025).

• XU，Huaxuan et al. Performance of radio frequency source based on electronic tube oscillation circuit for ion traps. CHINESE J. QUANTUM Electron. 42, 229 (2025).

• Tong, X., Linqiang, H., Hua, X. & Liu, X. The Ticking of Thorium Nuclear Optical Clocks: A Developmental Perspective. Natl. Sci. Rev. 12, nwaf083 (2025).

• Zhang, Q.-Y et al. Two-photon dissociation of BeH + with a middle ultraviolet band laser. Chinese Phys. B 34, 033301 (2025).

2024:

• Zhang, Q.-Y. et al. Precision measurement based on rovibrational spectrum of cold molecular hydrogen ion. Acta Phys. Sin. 73, 203301 (2024).

• Yu, S., Gan, W., Hua, X., Tong, X. & Li, C. ²²⁹Th³⁺ as an ionic optical clock for fine-structure-constant variations. Phys. Rev. A 109, 063115 (2024).

• Tong, X. Precisely simple. Nat. Phys. 20, 346–347 (2024).

• Bai, W. L. et al. Long term frequency stabilization and frequency drift suppression of the 313 nm laser. Chinese J. Phys. 89, 1500–1507 (2024).

• Li, Z., Li, L., Hua, X. & Tong, X. Loading and identifying various charged thorium ions in a linear ion trap with a time-of-flight mass spectrometer. J. Appl. Phys. 135, 144402 (2024).

• Li, L., Li, Z., Hua, X. & Tong, X. Dynamic laser ablation loading of a linear Paul trap. J. Phys. D. Appl. Phys. 57, 315205 (2024).

2023:

• Zhang, Y. et al. An efficient preparation of HD+ molecular ions in an ion trap by REMPI. Chinese J. Phys. 84, 164–172 (2023).

• Zhang, Y. et al. Generation of rotational-ground-state HD+ ions in an ion trap using a resonance-enhanced threshold photoionization process. Phys. Rev. A 107, 1–8 (2023).

• Li, M. et al. Investigation of spatial structure and sympathetic cooling in the 9Be+-40Ca+ bi-component Coulomb crystals. Chinese Phys. B 32, 036402 (2023).

• Li, L. et al. Scheme for the excitation of thorium-229 nuclei based on electronic bridge excitation. Nucl. Sci. Tech. 34, 24 (2023).

Prior to 2022:

• Li, M. et al. An efficient method for producing ⁹Be⁺ ions using a 2 + 1 resonance-enhanced multiphoton ionization process. J. Phys. B At. Mol. Opt. Phys. 55, 035002 (2022).

• Dong-dong, Z. & Xin, T. 囚禁状态冷分子离子制备及应用. 物理 40, 241–250 (2020).

• Li, H. X., Li, M., Zhang, Q. Y. & Tong, X. Secular Motion Frequencies of 9Be+ Ions and 40Ca+ Ions in Bi-component Coulomb Crystals. Chinese Phys. Lett. 36, (2019).

• Mitra, R. et al. Mercury Hydroxide as a Promising Triatomic Molecule to Probe P,T-odd Interactions. arXiv (2019).

• Liang, S. et al. A low-energy compact Shanghai-Wuhan electron beam ion trap for extraction of highly charged ions. Rev. Sci. Instrum. 90, (2019).

• Li, H. X., Zhang, Y., He, S. G. & Tong, X. Determination of the geometric parameters and of a linear Paul trap. Chinese J. Phys. 60, 61 (2019).

• Du, L. J. et al. Quantitative evaluation of space charge effects of laser-cooled three-dimensional ion system on a secular motion period scale. Chinese Phys. B 27, (2018).

• Pan, Y., Li, H., He, S. & Tong, X. Trapping and micromotion compensation of ions in segmented linear ion trap. Chinese J. Quantum Electron. 35, 424 (2018).

• Li, M., Zhang, Y., Peng, W. & Tong, X. Long-term frequency stabilization system of external cavity semiconductor laser based on precision wavelength meter. Chinese J. Quantum Electron. 34, 432–435 (2017).

• Yan, L. L. et al. Exploring structural phase transitions of ion crystals. Sci. Rep. 6, 21547 (2016).

• Chen, T. et al. Preparation of Ultracold Li+ Ions by Sympathetic Cooling in a Linear Paul Trap. Chinese Phys. Lett. 32, (2015).

• Germann, M., Tong, X. & Willitsch, S. Forbidden Vibrational Transitions in Cold Molecular Ions: Experimental Observation and Potential Applications. Chimia (Aarau). 69, 213–216 (2015).

• Zhong, Z.-X., Tong, X., Yan, Z.-C. & Shi, T.-Y. High-precision spectroscopy of hydrogen molecular ions. Chinese Phys. B 24, 053102 (2015).

• Du, L.-J. et al. Determination of ion quantity by using low-temperature ion density theory and molecular dynamics simulation. Chinese Phys. B 24, 113703 (2015).

• Du, L.-J. et al. Compensating for excess micromotion of ion crystals. Chinese Phys. B 24, 083702 (2015).

• Cao, J. et al. Simulation and Optimization of Miniature Ring-Endcap Ion Traps. Chinese Phys. Lett. 31, 043701 (2014).

• Chen, T. et al. Determining the structural phase transition point from the temperature of Ca-40(+) Coulomb crystal. Chinese Phys. B 23, 4 (2014).

• Germann, M., Tong, X. & Willitsch, S. Observation of electric-dipole-forbidden infrared transitions in cold molecular ions. Nat. Phys. 10, 820–824 (2014).

• Tong, X. et al. State-selected ion-molecule reactions with Coulomb-crystallized molecular ions in traps. Chem. Phys. Lett. 547, 1–8 (2012).

• Tong, X., Wild, D. & Willitsch, S. Collisional and radiative effects in the state-selective preparation of translationally cold molecular ions in ion traps. Phys. Rev. A - At. Mol. Opt. Phys. 83, 023415 (2011).

• Armentano, A. et al. Mass analyzed threshold ionization spectra of phenolAr(2): ionization energy and cation intermolecular vibrational frequencies. Phys. Chem. Chem. Phys. 13, 6071–6 (2011).

• Tong, X., Winney, A. H. & Willitsch, S. Sympathetic cooling of molecular ions in selected rotational and vibrational states produced by threshold photoionization. Phys. Rev. Lett. 105, 143001 (2010).

• Tong, X. et al. Dissociation energetics of the phenol+...Ar2 cluster ion: The role of pi->H isomerization. J. Chem. Phys. 133, 154308 (2010).

• Kalkman, I. et al. The structure of phenol-Ar(n) (n=1,2) clusters in their S(0) and S(1) states. J. Chem. Phys. 130, 224303 (2009).

• Cerný, J., Tong, X., Hobza, P. & Müller-Dethlefs, K. State of the art theoretical study and comparison to experiment for the phenol...argon complex. J. Chem. Phys. 128, 114319 (2008).

• Cerný, J., Tong, X., Hobza, P. & Müller-Dethlefs, K. Competition between stacking and hydrogen bonding: theoretical study of the phenol⋯Ar cation and neutral complex and comparison to experiment. Phys. Chem. Chem. Phys. 10, 2780 (2008).

• Tong, X., Černý, J. & Müller-Dethlefs, K. Effect of noncovalent interactions on the n-butylbenzene⋯Ar cluster studied by mass analyzed threshold ionization spectroscopy and ab initio computations. J. Phys. Chem. A 112, 5872–5877 (2008).

• Tong, X., Cerný, J., Müller-Dethlefs, K. & Dessent, C. E. H. Effect of noncovalent interactions on conformers of the n-butylbenzene monomer studied by mass analyzed threshold ionization spectroscopy and basis-set convergent ab initio computations. J. Phys. Chem. A 112, 5866–5871 (2008).

• Ford, M. S., Tong, X., Dessent, C. E. H. & Müller-Dethlefs, K. The effect of conformation on the ionization energetics of n-butylbenzene. II. A zero electron kinetic energy photoelectron spectroscopy study with partial rotational resolution. J. Chem. Phys. 119, 12914–12920 (2003).

• Tong, X., Ford, M. S., Dessent, C. E. H. & Müller-Dethlefs, K. The effect of conformation on the ionization energetics of n-butylbenzene. I. A threshold ionization study. J. Chem. Phys. 119, 12908–12913 (2003).

• Ullrich, S., Tong, X., Tarczay, G., Dessent, C. E. H. & Müller-Dethlefs, K. Hydration of a cationic amide group: a ZEKE spectroscopic study of trans-formanilide–H2O+. Phys. Chem. Chem. Phys. 4, 2897–2903 (2002).

• Tong, X., Ullrich, S., Dessent, C. E. H. & Müller-Dethlefs, K. Intermolecular vibration and internal rotation of a methyl group in acetanilide·Ar: a ZEKE photoelectron spectroscopy study. Phys. Chem. Chem. Phys. 4, 3578–3582 (2002).

• Ullrich, S., Tarczay, G., Tong, X., Dessent, C. E. H. & Müller-Dethlefs, K. ZEKE photoelectron spectroscopy of the cis and trans isomers of formanilide. Angew. Chemie - Int. Ed. 41, 166–168 (2002).

• Ullrich, S. et al. A REMPI and ZEKE spectroscopic study of the trans-formanilide·Ar van der Waals cluster. Chem. Phys. Lett. 351, 121–127 (2002).

• Ullrich, S., Tarczay, G., Tong, X., Dessent, C. E. H. & Müller-Dethlefs, K. A ZEKE photoelectron spectroscopy and ab initio study of the cis- and trans-isomers of formanilide: Characterizing the cationic amide bond? Phys. Chem. Chem. Phys. 3, 5450–5458 (2001).