| Micro displacement sensor based on line-defect resonant cavity in photonic crystal | |
| Xu, ZF ; Cao, LC ; Gu, C ; He, QS ; Jin, GF | |
| 2010-05-10 ; 2010-05-10 | |
| 关键词 | WAVE-GUIDES SLABS Optics |
| 中文摘要 | A micro displacement sensor and its sensing technique based on line-defect resonant cavity in photonic crystals (PhCs) are presented. The line-defect resonant cavity is formed by a fixed and a mobile PhC segments. With a proper operating frequency, a quasi-linear measurement of micro-displacement is achieved with sensitivity of 1.15 alpha(-1) (alpha is the lattice constant) and Q factor of 40. The sensitivity can be adjusted easily by varying either Q factor or operating frequency of the sensing system. In addition, the sensing range can be broadened to -0.55 alpha similar to 0.60 a by using multiple operating frequencies. The properties of the micro displacement sensor are analyzed theoretically and simulated using finite-difference time-domain (FDTD) method. (c) 2006 Optical Society of America. |
| 语种 | 英语 ; 英语 |
| 出版者 | OPTICAL SOC AMER ; WASHINGTON ; 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/24558]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Xu, ZF,Cao, LC,Gu, C,et al. Micro displacement sensor based on line-defect resonant cavity in photonic crystal[J],2010, 2010. |
| APA | Xu, ZF,Cao, LC,Gu, C,He, QS,&Jin, GF.(2010).Micro displacement sensor based on line-defect resonant cavity in photonic crystal.. |
| MLA | Xu, ZF,et al."Micro displacement sensor based on line-defect resonant cavity in photonic crystal".(2010). |
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