[1] D. Zhang et al. Coherent free-electron light sources. Photonics Insights, 2, R07-R07(2023). https://doi.org/10.3788/PI.2023.R07

[2] L. R. Elias. High-power, CW, efficient, tunable (UV through IR) free-electron laser using low-energy electron beams. Phys. Rev. Lett., 42, 977(1979). https://doi.org/10.1103/PhysRevLett.42.977

[3] W. S. Graves et al. MIT inverse Compton source concept. Nucl. Instrum. Methods Phys. Res. Sect. A: Accel. Spectrom. Detect. Assoc. Equip., 608, S103-S105(2009). https://doi.org/10.1016/j.nima.2009.05.042

[4] K. Ta Phuoc et al. All-optical Compton gamma-ray source. Nat. Photonics, 6, 308-311(2012). https://doi.org/10.1038/nphoton.2012.82

[5] A. Rousse et al. Production of a keV X-ray beam from synchrotron radiation in relativistic laser-plasma interaction. Phys. Rev. Lett., 93, 135005(2004). https://doi.org/10.1103/PhysRevLett.93.135005

[6] S. Kiselev, A. Pukhov, I. Kostyukov. X-ray generation in strongly nonlinear plasma waves. Phys. Rev. Lett., 93, 135004(2004). https://doi.org/10.1103/PhysRevLett.93.135004

[7] D. Zhang et al. Coherent surface plasmon polariton amplification via free-electron pumping. Nature, 611, 55-60(2022). https://doi.org/10.1038/s41586-022-05239-2

[8] L. J. Wong et al. Towards graphene plasmon-based free-electron infrared to X-ray sources. Nat. Photonics, 10, 46-52(2016). https://doi.org/10.1038/nphoton.2015.223

[9] H. Ishizuka et al. Smith–Purcell experiment utilizing a field-emitter array cathode: measurements of radiation. Nucl. Instrum. Methods Phys. Res. Sect. A: Accel. Spectrom. Detect. Assoc. Equip., 475, 593-598(2001). https://doi.org/10.1016/S0168-9002(01)01586-8

[10] Y. Ye et al. Deep-ultraviolet Smith–Purcell radiation. Optica, 6, 592-597(2019). https://doi.org/10.1364/OPTICA.6.000592

[11] W. Liu et al. Start current of dielectric-loaded grating in Smith-Purcell radiation. Phys. Plasmas, 23, 033104(2016). https://doi.org/10.1063/1.4942945

[12] I. A. Andriyash et al. An ultracompact X-ray source based on a laser-plasma undulator. Nat. Commun., 5, 4736(2014). https://doi.org/10.1038/ncomms5736

[13] T. Plettner, R. L. Byer. Proposed dielectric-based microstructure laser-driven undulator. Phys. Rev. Special Top.-Accel. Beams, 11, 030704(2008). https://doi.org/10.1103/PhysRevSTAB.11.030704

[14] D. Rohrbach et al. THz-driven surface plasmon undulator as a compact highly directional narrow band incoherent X-ray source. Phys. Rev. Accel. Beams, 22, 090702(2019). https://doi.org/10.1103/PhysRevAccelBeams.22.090702

[15] Y. Tian et al. Femtosecond-laser-driven wire-guided helical undulator for intense terahertz radiation. Nat. Photonics, 11, 242-246(2017). https://doi.org/10.1038/nphoton.2017.16

[16] M. Shentcis et al. Tunable free-electron X-ray radiation from van der Waals materials. Nat. Photonics, 14, 686-692(2020). https://doi.org/10.1038/s41566-020-0689-7

[17] T. Abe et al. Direct observation of breakdown trigger seeds in a normal-conducting RF accelerating cavity. Phys. Rev. Accel. Beams, 21, 122002(2018). https://doi.org/10.1103/PhysRevAccelBeams.21.122002

[18] R. J. England et al. Dielectric laser accelerators. Rev. Mod. Phys., 86, 1337(2014). https://doi.org/10.1103/RevModPhys.86.1337

[19] J. Wang et al. High quality beam produced by tightly focused laser driven wakefield accelerators. Phys. Rev. Accel. Beams, 26, 091303(2023). https://doi.org/10.1103/PhysRevAccelBeams.26.091303

[20] R. J. England et al. Dielectric laser accelerators. Rev. Mod. Phys., 86, 1337-1389(2014). https://doi.org/10.1103/RevModPhys.86.1337

[21] J. D. Jackson, R. F. Fox. Classical Electrodynamics(1999).

[22] P. Schmüser et al. Free-Electron Lasers in the Ultraviolet and X-ray Regime, 258(2014).

[23] R. Bonifacio, F. Casagrande. Instability threshold, quantum initiation and photonstatistics in high-gain free electron lasers. Nucl. Instrum. Methods Phys. Res. Sect. A: Accel. Spectrom. Detect. Assoc. Equip., 237, 168-179(1985). https://doi.org/10.1016/0168-9002(85)90345-6

[24] R. Bonifacio, N. Piovella. Quantum theory of high-gain free-electron lasers, 363-366(2005).

[25] G. Dattoli, S. Varro et al. Introduction to the physics of free electron laser and comparison with conventional laser sources. Free Electron Lasers, 1(2012).

[26] B. C. Stuart et al. Laser-induced damage in dielectrics with nanosecond to subpicosecond pulses. Phys. Rev. Lett., 74, 2248-2251(1995). https://doi.org/10.1103/PhysRevLett.74.2248

[27] M. Lenzner et al. Femtosecond optical breakdown in dielectrics. Phys. Rev. Lett., 80, 4076-4079(1998). https://doi.org/10.1103/PhysRevLett.80.4076

[28] S. A. Schmid et al. Design study of a dielectric laser undulator. Phys. Rev. Accel. Beams, 25, 091301(2022). https://doi.org/10.1103/PhysRevAccelBeams.25.091301

[29] X.-L. Zhu et al. Efficient generation of collimated multi-GeV gamma-rays along solid surfaces. Optica, 10, 118-124(2023). https://doi.org/10.1364/OPTICA.479951

[30] A. W. Grant, Q. H. Hu, B. Kasemo. Transmission electron microscopy windows for nanofabricated structures. Nanotechnology, 15, 1175-1181(2004). https://doi.org/10.1088/0957-4484/15/9/012

[31] B. Morana et al. Characterization of LPCVD amorphous silicon carbide (a-Sic) as material for electron transparent windows. Mater. Chem. Phys., 139, 654-662(2013). https://doi.org/10.1016/j.matchemphys.2013.02.013