Phase-type Fresnel zone plate with multi-wavelength imaging embedded in fluoroaluminate glass fabricated via ultraviolet femtosecond laser lithography

• Main Authors: Li, Qisong, Dai, Xuran, Shi, Haosong, Liu, Yi, Zhang, Long
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2022
• Subjects: Science::Physics; Ultraviolet Femtosecond Laser Fabrication; Inner Refractive Index Modification
• Online Access: https://hdl.handle.net/10356/160794
• Institution: Nanyang Technological University

Herein, we report a novel optical glass material, fluoroaluminate (AlF3) glass, with excellent optical transmittance from ultraviolet to infrared wavelength ranges, which provides more options for application in optical devices. Based on its performance, the phase-type Fresnel zone plate (FZP) by ul...