[1] Paulus G G, Nicklich W, Xu H L et al. Plateau in above threshold ionization spectra[J]. Physical Review Letters, 72, 2851-2854(1994).

[2] Macklin J J, Kmetec J D, Gordon C L. High-order harmonic generation using intense femtosecond pulses[J]. Physical Review Letters, 70, 766-769(1993).

[3] Fittinghoff D N, Bolton P R, Chang B et al. Observation of nonsequential double ionization of helium with optical tunneling[J]. Physical Review Letters, 69, 2642-2645(1992).

[4] Feng F Z, Bai L H, Zheng X X. Nonsequential double ionization of Mg atoms below threshold laser power density[J]. Acta Optica Sinica, 38, 0702003(2018).

[5] Stapelfeldt H, Constant E, Corkum P B. Wave packet structure and dynamics measured by coulomb explosion[J]. Physical Review Letters, 74, 3780-3783(1995).

[6] Agostini P. DiMauro L F. Atoms in high intensity mid-infrared pulses[J]. Contemporary Physics, 49, 179-197(2008).

[7] Becker W, Liu X J, Ho P J et al. Theories of photoelectron correlation in laser-driven multiple atomic ionization[J]. Reviews of Modern Physics, 84, 1011-1043(2012).

[8] Posthumus J H. The dynamics of small molecules in intense laser fields[J]. Reports on Progress in Physics, 67, 623-665(2004).

[9] Itatani J, Levesque J, Zeidler D et al. Tomographic imaging of molecular orbitals[J]. Nature, 432, 867-871(2004).

[10] Meckel M, Comtois D, Zeidler D et al. Laser-induced electron tunneling and diffraction[J]. Science, 320, 1478-1482(2008).

[11] Pullen M G, Wolter B, Le A T et al. Imaging an aligned polyatomic molecule with laser-induced electron diffraction[J]. Nature Communications, 6, 7262(2015).

[12] Petersen I, Henkel J, Lein M. Signatures of molecular orbital structure in lateral electron momentum distributions from strong-field ionization[J]. Physical Review Letters, 114, 103004(2015).

[13] Baker S, Robinson J S, Haworth C A et al. Probing proton dynamics in molecules on an attosecond time scale[J]. Science, 312, 424-427(2006).

[14] Nisoli M, Decleva P, Calegari F et al. Attosecond electron dynamics in molecules[J]. Chemical Reviews, 117, 10760-10825(2017).

[15] Krausz F, Ivanov M. Attosecond physics[J]. Reviews of Modern Physics, 81, 163-234(2009).

[16] Guo Z N, Ma X Y, Han M et al. Tunneling ionization of atoms and molecules in femtosecond-laser fields and its applications[J]. Chinese Journal of Lasers, 46, 0508017(2019).

[17] Talebpour A, Chien C Y, Chin S L. The effects of dissociative recombination in multiphoton ionization of O2[J]. Journal of Physics B-Atomic Molecular and Optical Physics, 29, L677-L680(1996).

[18] Guo C, Li M, Nibarger J P et al. Single and double ionization of diatomic molecules in strong laser fields[J]. Physical Review A, 58, R4271-R4274(1998).

[19] Muth-Böhm J, Becker A. Faisal F H M. Suppressed molecular ionization for a class of diatomics in intense femtosecond laser fields[J]. Physical Review Letters, 85, 2280-2283(2000).

[20] Guo C L. Multielectron effects on single-electron strong field onization[J]. Physical Review Letters, 85, 2276-2279(2000).

[21] Tong X M, Zhao Z X, Lin C D. Theory of molecular tunneling ionization[J]. Physical Review A, 66, 033402(2002).

[22] Jaroń-Becker A, Becker A. Faisal F H M. Ionization of N2, O2, and linear carbon clusters in a strong laser pulse[J]. Physical Review A, 69, 023410(2004).

[23] Kjeldsen T K, Madsen L B. Strong-field ionization of diatomic molecules and companion atoms: strong-field approximation and tunneling theory including nuclear motion[J]. Physical Review A, 71, 023411(2005).

[24] Usachenko V I, Chu S I. Strong-field ionization of laser-irradiated light homonuclear diatomic molecules: a eneralized strong-field approximation-linear combination of atomic orbitals model[J]. Physical Review A, 71, 063410(2005).

[25] Okunishi M, Itaya R, Shimada K et al. Two-source double-slit interference in angle-resolved high-energy above-threshold ionization spectra of diatoms[J]. Physical Review Letters, 103, 043001(2009).

[26] Becker A. Faisal F H M. Intense-field many-body S-matrix theory[J]. Journal of Physics B-Atomic Molecular and Optical Physics, 38, R1-R56(2005).

[27] Lin Z Y, Jia X Y, Wang C L et al. Ionization suppression of diatomic molecules in an intense midinfrared laser field[J]. Physical Review Letters, 108, 223001(2012).

[28] Kang H P, Lin Z Y, Xu S P et al. Wavelength-dependent ionization suppression of diatomic molecules in intense circularly polarized laser fields[J]. Physical Review A, 90, 063426(2014).

[29] Wei M Z, Quan W, Sun R P et al. Two-center interference effect in ionization of diatomic molecules subject to close-to-circularly-polarized femtosecond laser fields[J]. Physical Review A, 98, 063418(2018).

[30] Tong A H, Feng G Q. Laer polarization dependence of double ionization of molecules[J]. Acta Physica Sinica, 63, 023303(2014).

[31] Hartung A, Morales F, Kunitski M et al. Electron spin polarization in strong-field ionization of xenon atoms[J]. Nature Photonics, 10, 526-528(2016).

[32] Hansch P. Walker M A, van Woerkom L D. Eight- and nine-photon resonances in multiphoton ionization of xenon[J]. Physical Review A, 57, R709-R712(1998).

[33] Wu J, Zeng H P, Guo C L. Comparison study of atomic and molecular single ionization in the multiphoton ionization regime[J]. Physical Review Letters, 96, 243002(2006).

[34] Lin K, Jia X Y, Yu Z Q et al. Comparison study of strong-field ionization of molecules and atoms by bicircular two-color femtosecond laser pulses[J]. Physical Review Letters, 119, 203202(2017).

[35] Blaga C I, Catoire F, Colosimo P et al. Strong-field photoionization revisited[J]. Nature Physics, 5, 335-338(2009).

[36] Quan W, Lin Z, Wu M et al. Classical aspects in above-threshold ionization with a midinfrared strong laser field[J]. Physical Review Letters, 103, 093001(2009).

[37] Pavicic D, Lee K F, Rayner D M et al. Direct measurement of the angular dependence of ionization for N2, O2, and CO2 in intense laser fields[J]. Physical Review Letters, 98, 243001(2007).

[38] Sun R P, Lai X Y, Yu S G et al. Tomographic extraction of the internuclear separation based on two-center interference with aligned diatomic molecules[J]. Physical Review Letters, 122, 193202(2019).

[39] Fu Y X, Xiong H, Xu H et al. Phase-matched high-order harmonic generation in a gas cell with midinfrared femtosecond pulses[J]. Physical Review A, 79, 013802(2009).

[40] Lin Z Y, Lin B Q, Chen Z X. Single ionization of atoms driven by ultrafast intense mid-infrared laser fields[J]. Acta Optica Sinica, 38, 0602001(2018).

[41] Becker A. Faisal F H M. Correlated Keldysh-Faisal-Reiss theory of above-threshold double ionization of He in intense laser fields[J]. Physical Review A, 50, 3256-3264(1994).

[42] Milosevic D B. Strong-field approximation for ionization of a diatomic molecule by a strong laser field[J]. Physical Review A, 74, 063404(2006).

[43] Cade P E, Wahl A C. Hartree-Fock-Roothaan wave functions for diatomic molecules: II. First-row homonuclear systems A2, A2±, and A2*[J]. Atomic Data and Nuclear Data Tables, 13, 339-389(1974).

[44] Telnov D A, Chu S I. Effects of electron structure and multielectron dynamical response on strong-field multiphoton ionization of diatomic molecules with arbitrary orientation: an all-electron time-dependent density-functional-theory approach[J]. Physical Review A, 79, 041401(2009).

[45] Walker B, Sheehy B. DiMauro L F, et al. Precision measurement of strong field double ionization of helium[J]. Physical Review Letters, 73, 1227-1230(1994).

[46] Hankin S M, Villeneuve D M, Corkum P B et al. Intense-field laser ionization rates in atoms and molecules[J]. Physical Review A, 64, 013405(2001).

[47] Becker A, Plaja L, Moreno P et al. Total ionization rates and ion yields of atoms at nonperturbative laser intensities[J]. Physical Review A, 64, 023408(2001).