Abstract

The study of terahertz (THz) structured beams has become an interesting subject. Here, we use 3D printed diffractive plates to generate a THz zero-order Mathieu–Gauss beam at a frequency of 0.1 THz and simulate its line-imaging effect. According to the nondiffraction property of the beam, we conduct a transmission imaging test by placing the imaging plate at different positions along the direction of beam propagation. The results show that the THz zero-order Mathieu–Gauss beam has a good imaging effect in the depth of field of about 130–380 mm. This can be used in large depth of field THz line imaging.

© 2021 Optical Society of America

Generation of arbitrary order Bessel beams via 3D printed axicons at the terahertz frequency range

Xuli Wei, Changming Liu, Liting Niu, Zhongqi Zhang, Kejia Wang, Zhengang Yang, and Jinsong Liu
Appl. Opt. 54(36) 10641-10649 (2015)

Experimental generation of Mathieu–Gauss beams with a phase-only spatial light modulator

R. J. Hernández-Hernández, R. A. Terborg, I. Ricardez-Vargas, and K. Volke-Sepúlveda
Appl. Opt. 49(36) 6903-6909 (2010)

Generation of on-demand quasi-Mathieu beams with a controlled generation of spatial spectrum of angular Mathieu-Gauss functions with a digital laser

Ly Ly Nguyen Thi and Shu-Chun Chu
Opt. Express 30(4) 5283-5293 (2022)

Normalization of the Mathieu-Gauss optical beams

Julio C. Gutiérrez-Vega and Miguel A. Bandres
J. Opt. Soc. Am. A 24(1) 215-220 (2007)

Generation of Mathieu-Gauss modes with an axicon-based laser resonator

Martha B. Alvarez-Elizondo, Rodolfo Rodríguez-Masegosa, and Julio C. Gutiérrez-Vega
Opt. Express 16(23) 18770-18775 (2008)