Generating Convergent Laguerre-Gaussian Beams Based on an Arrayed Convex Spiral Phaser Fabricated by 3D Printing

• Published in: Micromachines (Basel) Vol. 11; no. 8; p. 771
• Main Authors: Liu, Chang, Hu, Chai, Wei, Dong, Chen, Mingce, Shi, Jiashuo, Wang, Haiwei, Xie, Changsheng, Zhang, Xinyu
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 13.08.2020; MDPI
• Subjects: 3-D printers; 3D printing; Accuracy; Convergence; CSPA; Focal plane; Gaussian beams (optics); Glass substrates; Lasers; Light; Manufacturing; Molecular weight; Morphology; Photon absorption; Polymers; Software; Structural integrity; Three dimensional printing; Topography; two-photon absorption; vortex beams; Vortices

A convex spiral phaser array (CSPA) is designed and fabricated to generate typical convergent Laguerre-Gaussian (LG) beams. A type of 3D printing technology based on the two-photon absorption effect is used to make the CSPAs with different featured sizes, which present a structural integrity and fab...