Adaptive ray tracing in freeform gradient-index media using an index directional derivative

• Published in: Optics letters Vol. 49; no. 19; p. 5375
• Main Authors: Yu, Caiyun, Zong, Yi, Duan, Mingliang, Chen, Lei, Li, Jianxin
• Format: Journal Article
• Language: English
• Published: United States 01.10.2024

Freeform gradient index (F-GRIN) media are increasingly used in optical systems. The existing ray tracing methods for F-GRIN have low calculation efficiency and require manual adjustment of step size, making the design process complex. To address this, we propose an adaptive ray tracing (ART) method...