环面
光学
光线追踪(物理)
半径
曲面(拓扑)
路径长度
图层(电子)
吸收(声学)
材料科学
物理
几何学
计算机科学
数学
等离子体
纳米技术
量子力学
计算机安全
作者
Hong Chang,Shiling Feng,Xuanbing Qiu,Huiyan Meng,Guqing Guo,Xiaohu He,Qiusheng He,Xiaohua Yang,Weiguang Ma,Ruifeng Kan,Christa Fittschen,Chuanliang Li
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2020-09-17
卷期号:45 (21): 5897-5897
被引量:30
摘要
We developed a type of toroidal multi-pass cell with multi-layer patterns based on the off-axis model. The effective path length of the original toroidal multi-pass cell is extended several roundtrips in comparison with the single-layer pattern, since the inner surface of the toroidal multi-pass cell is more efficiently utilized. The light pattern has been achieved by using the simple ring surface, which is easy to fabricate. The exact analytical equations for the design of the toroidal multi-pass cell were derived based on analytical vector calculations. A series of numerical ray tracing simulations is presented, and the maximum theoretical optical path length that can be reached is 30 m with a setup of 5 cm column radius. Furthermore, two practical spot patterns are demonstrated with a path length of 8.3 m for a two-layer pattern and 10 m for a three-layer pattern, with respective effective volumes of 63 mL and 94 mL. Furthermore, the fringe effect is substantially reduced to less than 0.5% by the usage of our designed mask.
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