摘要
We introduce a photonic crystal hetero-slab-edge microcavity design with surface mode, which is beneficial for optical index sensing. The simulated index sensitivity (R n ) as high as 675 nm per refractive index unit (nm/RIU) variation is obtained with slab thickness of 180 nm. In experiments, single surface mode lasing action from a real device is observed. Based on the surface mode in this microcavity, high experimental R n value of 625 nm/RIU is achieved by detecting index variation in a CO 2 chamber with different gas pressures.
| 原文 | English |
|---|---|
| 頁（從 - 到） | 1452-1454 |
| 頁數 | 3 |
| 期刊 | Optics Letters |
| 卷 | 35 |
| 發行號 | 9 |
| DOIs | |
| 出版狀態 | Published - 1 5月 2010 |