[1] Tokizane Y, Yamaguchi T, Minamikawa T et al. Ultralow-frequency ultranarrow-bandwidth coherent terahertz imaging for nondestructive testing of mortar material[J]. Optics Express, 30, 4392-4401(2022).

[2] Wang Q S, Mu D, Zhou T Y et al. Terahertz nondestructive test of delamination defects in glass-fiber-reinforced composite materials[J]. Acta Optica Sinica, 41, 1712003(2021).

[3] Takida Y, Nawata K, Minamide H. Security screening system based on terahertz-wave spectroscopic gas detection[J]. Optics Express, 29, 2529-2537(2021).

[4] Wang Y Y, Jiang B Z, Xu D G et al. Continuous terahertz wave biological tissue imaging technology based on focal plane array[J]. Acta Optica Sinica, 41, 0711001(2021).

[5] Vicente O C, Caloz C. Bessel beams: a unified and extended perspective[J]. Optica, 8, 451-457(2021).

[6] Hao W M, Wang J, Chen L. Compact broadband silicon-integrated Airy beam emitter[J]. Optics Letters, 46, 4084-4087(2021).

[7] Wang Z, Yuan Z, Gao Y et al. Twin curvilinear vortex beams[J]. Optics Express, 29, 14112-14125(2021).

[8] Li H T, Wang X K, Zhang Y. Study and applications of terahertz special beams[J]. Chinese Journal of Lasers, 46, 0614007(2019).

[9] Li F J, Wang S, Li X P et al. Perfect diffractive circular metagrating for Bessel beam transformation[J]. Optics Letters, 47, 1375-1378(2022).

[10] Xiang F D, Yu M, Zhang M T et al. Terahertz ptychography using a long-distance diffraction-free beam as the probe[J]. Optics Letters, 47, 238-241(2022).

[11] Durnin J, Miceli J J, Eberly J H. Diffraction-free beams[J]. Physical Review Letters, 58, 1499-1501(1987).

[12] Scott G, McArdle N. Efficient generation of nearly diffraction-free beams using an axicon[J]. Optical Engineering, 31, 2640-2643(1992).

[13] Lu Y, Jiang B, Lü S C et al. Arrays of Gaussian vortex, Bessel and Airy beams by computer-generated hologram[J]. Optics Communications, 363, 85-90(2016).

[14] Chen W T, Khorasaninejad M, Zhu A Y et al. Generation of wavelength-independent subwavelength Bessel beams using metasurfaces[J]. Light: Science & Applications, 6, e16259(2017).

[15] Yuan J P, Wang X W, Wang L R et al. Tunable high-order Bessel-like beam generation based on cross-phase modulation[J]. Optics Express, 30, 15978-15985(2022).

[16] Zeng X H, Wu F T, Xing X X et al. Influence of manufacture error with non-circular symmetry in an axicon on the Bessel beams quality[J]. Chinese Journal of Lasers, 33, 809-813(2006).

[17] Yang G Y, Ma G L, Zeng G Y. Influence of the surface deviation axicon on the propagation characteristics of non-diffracting beam[J]. Acta Photonica Sinica, 48, 0126002(2019).

[18] Liu L, Huang X J, Xu H Y et al. Generating long-distance nondiffracting Bessel beams with liquid-immersion composite-axicon[J]. Acta Photonica Sinica, 46, 1114001(2017).

[19] Liu Z Q, Hu Y Y, Ye M. Liquid crystal axicon[J]. Acta Optica Sinica, 42, 0823001(2022).

[20] Niu L T, Wang K J, Yang Y Q et al. Diffractive elements for zero-order Bessel beam generation with application in the terahertz reflection imaging[J]. IEEE Photonics Journal, 11, 5900212(2019).

[21] Wei X L, Liu C M, Niu L T et al. Generation of arbitrary order Bessel beams via 3D printed axicons at the terahertz frequency range[J]. Applied Optics, 54, 10641-10649(2015).

[22] Wu Q, Xiang F D, Huang Q et al. Generation of terahertz beams with long diffraction-free length[J]. Chinese Journal of Lasers, 46, 0614024(2019).

[23] Xiang F D, Liu D F, Xiao L et al. Generation of a meter-scale THz diffraction-free beam based on multiple cascaded lens-axicon doublets: detailed analysis and experimental demonstration[J]. Optics Express, 28, 36873-36883(2020).

[24] Lü B D[M]. Laser optics(2003).

[25] Feng G Y, Lü B D, Cai B W. Transformation properties of laser beams passing through axicon system and their applications[J]. Laser Technology, 20, 138-143(1996).

[26] Hu R, Wu F T. Influence of axicon vertex off axis machining error on Bessel beams[J]. Chinese Journal of Lasers, 43, 1205002(2016).