A Broadband and omnidirectional electromagnetic wave concentrator with gradient woodpile structure
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- A Broadband and omnidirectional electromagnetic wave concentrator with gradient woodpile structure
- 发表刊物：
- Optics Express
- 摘要：
- We present the first realized three-dimensional (3D) practical implementation of the so called “optical black hole” in microwave frequencies, an electromagnetic (EM) concentrator. The 3D EM wave concentrator was designed with non-resonant gradient index (GRIN) 3D woodpile photonic crystals (PCs) structure in metamaterial regime, and fabricated by Stereolithography (SL) process. Omnidirectional EM wave capture and absorbing ability of the device in a broad bandwidth (12GHz-15GHz) were validated by full-wave simulation and experiments. Such devices may have applications in microwave energy harvesting and radiation detector.
- 合写作者：
- M. Yin, X. Tian (corr. au) et al
- 卷号：
- Vol. 21, Iss. 16
- 页面范围：
- pp. 19082–19090 (2013)
- 是否译文：
- 否
- 发表时间：
- 2013-07-26