[1] Tong Y, Hao X X. Research status and development trends of electromagnetic metamaterials[J]. China Basic Science, 21, 57-62(2019).

[2] Hou J Z. Design and simulation of electromagnetic metamaterial absorbed structure[D], 12-13(2015).

[3] Landy N I, Sajuyigbe S, Mock J J et al. Perfect metamaterial absorber[J]. Physical Review Letters, 100, 207402(2008).

[4] Tao H, Landy N I, Bingham C M et al. A metamaterial absorber for the terahertz regime: design, fabrication and characterization[J]. Optics Express, 16, 7181-7188(2008).

[5] Liu X L, Starr T, Starr A F et al. Infrared spatial and frequency selective metamaterial with near-unity absorbance[J]. Physical Review Letters, 104, 207403(2010).

[6] Liu N, Mesch M, Weiss T et al. Infrared perfect absorber and its application as plasmonic sensor[J]. Nano Letters, 10, 2342-2348(2010).

[7] Dong Z T, Wang Q, Wang Y et al. Review on design methods of meta-material absorbers[J]. Ship Electronic Engineering, 37, 136-141(2017).

[8] Dayal G, Ramakrishna S A. Metamaterial saturable absorber mirror[J]. Optics Letters, 38, 272-274(2013).

[9] Sain B, Zentgraf T. Metasurfaces help lasers to mode-lock[J]. Light: Science & Applications, 9, 67(2020).

[10] Zhang Z H, Xu W J, Liu H M. Reverse saturation absorption optical limiting effect and laser protection[J]. Fine Chemical Intermediates, 35, 51-54(2005).

[11] Liu J, Wang X, Yao Z H et al. Ultrafast laser based on ZnO saturable absorber[J]. Semiconductor Technology, 46, 539-545(2021).

[12] Wang X, Zhu Y J, Jiang C et al. InAs/GaAs quantum dot semiconductor saturable absorber for controllable dual-wavelength passively Q-switched fiber laser[J]. Optics Express, 27, 20649-20658(2019).

[13] Haus H A. Mode-locking of lasers[J]. IEEE Journal of Selected Topics in Quantum Electronics, 6, 1173-1185(2000).

[14] Wang J, Coillet A, Demichel O et al. Saturable plasmonic metasurfaces for laser mode locking[J]. Light: Science & Applications, 9, 50(2020).

[15] Zou G L. Research progress on passive Q-switching of gold nano-saturable absorbers[J]. Electronic Technology & Software Engineering, 77-78(2020).

[16] Zhang Q, Jin X X, Zhang M et al. Two-dimensional material as a saturable absorber for mid-infrared ultrafast fiber laser[J]. Acta Physica Sinica, 69, 188101(2020).

[17] Zhang K L, Chen H W, Lu B L et al. Passively Q-switched erbium-doped fiber laser based on HfSe2 saturable absorber[J]. Acta Optica Sinica, 40, 1314001(2020).

[18] Zou J, Dong C, Wang H et al. Towards visible-wavelength passively mode-locked lasers in all-fibre format[J]. Light: Science & Applications, 9, 61(2020).

[19] Xu B, Zhang T, Zou J H et al. Research progress of direct generation lasers in visible spectral range[J]. Journal of Xiamen University (Natural Science), 60, 484-496(2021).

[20] Fujita S, Jovaini A, Godoy S et al. On the metal-insulator transition in vanadium dioxide[J]. Physics Letters A, 376, 2808-2811(2012).

[21] Wang P X. Study of shortwave photothermal effect based on surface plasmon resonance and its application[D](2018).

[22] Ling F, Zhong Z, Huang R et al. A broadband tunable terahertz negative refractive index metamaterial[J]. Scientific Reports, 8, 9843(2018).

[23] Mandal P, Speck A, Ko C et al. Terahertz spectroscopy studies on epitaxial vanadium dioxide thin films across the metal-insulator transition[J]. Optics Letters, 36, 1927-1929(2011).

[24] Jepsen P U, Fischer B M, Thoman A et al. Metal-insulator phase transition in a VO2 thin film observed with terahertz spectroscopy[J]. Physical Review B, 74, 205103(2006).

[25] Liu Z Q, Chang S J, Wang X L et al. Thermally controlled terahertz metamaterial modulator based on phase transition of VO2 thin film[J]. Acta Physica Sinica, 62, 130702(2013).

[26] Walther M, Cooke D G, Sherstan C et al. Terahertz conductivity of thin gold films at the metal-insulator percolation transition[J]. Physical Review B, 76, 125408(2007).

[27] Chen H G. Research on terahertz super metasurface based on the phase transition characteristics of vanadium dioxide[D], 8-9(2020).

[28] Liu Y C. Research on terahertz tunable absorbers based on vanadium dioxide[D], 17-18(2021).

[29] Chen C Q, Zhu W, Gan S Y et al. Growth and phase transition studies of VO2 thin film[J]. Vacuum Science and Technology, 21, 452-456(2001).

[30] Becker M F, Buckman A B, Walser R M et al. Femtosecond laser excitation of the semiconductor-metal phase transition in VO2[J]. Applied Physics Letters, 65, 1507-1509(1994).