[1] Sansone G, Benedetti E, Calegari F, et al. Isolated single-cycle attosecond pulses [J]. Science, 2006, 314 (5798): 443-446.[2] Liu H, Feng L Q. Theoretical investigation on harmonic emission and attosecond pulse generation from H2+ molecule under spatial inhomogeneous field [J]. Chinese Journal of Quantum Electronics(量子电子学报), 2017, 34 (2): 162-169 (in Chinese).[3] Feng L Q. Characteristics of high-order harmonic emission from He+ in bowtie-shaped metal nanostructure [J]. Chinese Journal of Quantum Electronics(量子电子学报), 2018, 35 (4): 479-485 (in Chinese).[4] Feng L Q. Molecular harmonic extension and enhancement from H2+ ions in the presence of spatially inhomogeneous fields [J]. Physical Review A, 2015, 92 (5): 053832 .[5] Corkum P B. Plasma perspective on strong field multiphoton ionization [J]. Physical Review Letters, 1993, 71 (13): 1994-1997.[6] Feng L Q, Liu H. Generation of the ultrabroad bandwidth with keV by three-color low intense mid-infrared inhomogeneous pulse [J]. Optics and Laser Technology, 2016, 81: 7-13.[7] Cao X, Jiang S C, Yu C, et al. Generation of isolated sub-10-attosecond pulses in spatially inhomogenous two-color fields [J]. Optics Express, 2014, 22 (21): 26153-26161.[8] Feng L Q, Chu T S. Generation of an isolated sub-40-as pulse using two-color laser pulses: Combined chirp effects [J]. Physical Review A, 2011, 84 (5): 053853.[9] Li Y, Feng L Q, Qiao Y. Improvement of high-order harmonic generation via controlling multiple acceleration-recombination process [J]. Zeitschrift für Naturforschung A, 2019, 74 (7): 561-571.[10] Ciappina M F, Pérez-Hernández J A, Landsman A S et al. Attosecond physics at the nanoscale [J]. Reports on Progress in Physics, 2017, 80 (5): 054401.[11] Liu H, Feng L Q. Attosecond x-ray sources generation from pre-excited He+ ions using mid-infrared homogeneous and inhomogeneous fields [J]. Laser Physics, 2015, 25 (10): 105301.[12] Feng L Q, Chu T S. Nuclear signatures on the molecular harmonic emission and the attosecond pulse generation [J]. The Journal of Chemical Physics, 2012, 136 (5): 054102. [13] Li Liang, 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 B, 2019, 33 (13): 1950130.[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] 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 E, 2008, 77 (6): 066701.[16] Hu J, Han K L, He G Z. Correlation quantum dynamics between an electron and D2+ molecule with attosecond resolution [J]. Physical Review Letters, 2005, 95 (12): 123001.[17] Liu H, Li W L, Feng L Q. Chirp control of multi-photon resonance ionization and charge resonance enhanced ionization on molecular harmonic generation [J]. Chemical Physics Letters, 2017, 676: 118-123. |