[1] AGOSTINI P, FABRE F, MAINFRAY G, et al. Free-free transitions following six-photon ionization of xenon atoms[J]. Physical Review Letters, 1979, D42(17): 1127-1130.
[2] FITTINGHOFF D N, BOLTON P R, CHANG B, et al. Observation of nonsequential double ionization of helium with optical tunneling[J]. Physical Review Letters, 1992, 69(18): 2642-2645. doi: 10.1103/PhysRevLett.69.2642
[3] XU C Y, FENG L Q, QIAO Y, et al. Pulse duration dependence of harmonic yield of H2+ and its isotopic molecule[J]. The European Physical Journal, 2020, D74(7): 139.
[4] FRASINSKI L J, CODLING K, HATHERLY P, et al. Femtosecond dynamics of multielectron dissociative ionization by use of a picose-cond laser[J]. Physical Review Letters, 1987, 58(23): 2424-2427. doi: 10.1103/PhysRevLett.58.2424
[5] LI L, ZHENG M, FENG R L Q, et al. Waveform control in generations of intense water window attosecond pulses via multi-color combined field[J]. International Journal of Modern Physics, 2019, B33(13): 1950130.
[6] LIU H, FENG L Q. Mid-infrared field phase measurement and a-ttosecond pulse generation[J]. Laser Technology, 2017, 41(2): 151-158 (in Chinese).
[7] FENG L Q, LI Y, LIU H. High intensity attosecond pulse generation by the improved multi-cycle polarization gating technology[J]. Laser Technology, 2018, 42(4): 451-456 (in Chinese).
[8] L'HUILLIER A, BALCOU P. High-order harmonic generation in rare gases with a 1ps 1053nm laser[J]. Physical Review Letters, 1993, 70(6): 774-777. doi: 10.1103/PhysRevLett.70.774
[9] LI Y, FENG L Q, QIAO Y. Selective enhancement of single-order and two-order harmonics from He atom via two-color and three-color laser fields[J]. Chemical Physics, 2019, 527(12): 110497.
[10] SANSONE G, BENEDETTI E, CALEGARI F, et al. Isolated single-cycle attosecond pulses[J]. Science, 2006, 314(5798): 443-446. doi: 10.1126/science.1132838
[11] CORKUM P B. Plasma perspective on strong field multiphoton ionization[J]. Physical Review Letters, 1993, 71(13): 1994-1997. doi: 10.1103/PhysRevLett.71.1994
[12] FENG L Q. Molecular harmonic extension and enhancement from H2+ ions in the presence of spatially inhomogeneous fields[J]. Physical Review, 2015, A92(5): 053832.
[13] YUAN Q, FENG L Q, LIU H. Half-cycle waveform control for generating ultra-wide harmonic spectral plateau[J]. Laser Technology, 2021, 45(4): 463-469 (in Chinese).
[14] LI Y, FENG R L Q, QIAO Y. Improvement of harmonic spectra from superposition of initial state driven by homogeneous and inhomogeneous combined field[J]. Canadian Journal of Physics, 2020, 98(1): 198-209.
[15] LI Y, FENG L Q. Improvement of harmonic cutoff energy and intensity by using chirped-UV combined field[J]. Chinese Journal of Quantum Electronics, 2019, 36(6): 738-744 (in Chinese).
[16] LIU H, LI Y, YAO Zh, et al. Chirp pulse control on harmonic cutoff and harmonic intensity[J]. Laser Technology, 2017, 41(5): 708-711 (in Chinese).
[17] FENG L Q, CHU T S. Generation of an isolated sub-40as pulse using two-color laser pulses: Combined chirp effects[J]. Physical Review, 2011, A84(5): 053853.
[18] FENG L Q, LI Y. Generation of attosecond pulses from He atom driven by UV-chirped laser beam[J]. Laser Technology, 2019, 43(5): 629-634 (in Chinese).
[19] LU R F, ZHANG P Y, HAN K L. Attosecond-resolution quantum dynamics calculations for atoms and molecules in strong laser fields[J]. Physical Review, 2008, E77(6): 066701.
[20] FENG L Q, McCAIN J, QIAO Y. Half-cycle waveform control for producing a broad and intense harmonic spectral continuum and an isolated attosecond pulse[J]. Laser Physics, 2021, 31(5): 055301.