High-Q microcavities in low-index one-dimensional photonic crystal slabs based on modal gap confinement
文献类型：期刊论文
| 作者 | Meng, ZM ; Qin, F ; Liu, Y ; Li, ZY |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2011 |
| 卷号 | 109期号:4 |
| 关键词 | OPTICAL MICROCAVITIES Q NANOCAVITY |
| ISSN号 | 0021-8979 |
| 通讯作者 | Li, ZY: Chinese Acad Sci, Inst Phys, Lab Opt Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | Recently, various high quality factor photonic crystal microcavities have been demonstrated theoretically and experimentally with only one-dimensional periodicity. However, in most cases high-index materials such as silicon were chosen for easily achievable large photonic bandgap and elaborate refractive index modulation or taper structure is required for reducing radiation loss. Here, we present a design of high-Q microcavities in one-dimensional multilayer polystyrene photonic crystal slab structures with a low-index contrast of 1.59:1. Microcavities are introduced by simply decreasing the thickness of layers at the center region to form a double-heterostructure. A resonant mode with a quality factor up to 20 000 is obtained and found to originate from the modal gap confinement by comparing with a Fabry-Perot cavity. The dependence of the maximal quality factor on the cavity length further reveals that the small group velocity of light within the heterostructure cavity contributes significantly to the high-Q. In terms of the high quality factor, ease of fabrication, and large Kerr nonlinearity of polystyrene, our double-heterostructure microcavities will find potential application in realizing all-optical modulation devices. VC 2011 American Institute of Physics. [doi: 10.1063/1.3553450] |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10\525\419, 10\634\080]; National Basic Research Foundation of China [2007CB613205] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39409]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Meng, ZM,Qin, F,Liu, Y,et al. High-Q microcavities in low-index one-dimensional photonic crystal slabs based on modal gap confinement[J]. JOURNAL OF APPLIED PHYSICS,2011,109(4). |
| APA | Meng, ZM,Qin, F,Liu, Y,&Li, ZY.(2011).High-Q microcavities in low-index one-dimensional photonic crystal slabs based on modal gap confinement.JOURNAL OF APPLIED PHYSICS,109(4). |
| MLA | Meng, ZM,et al."High-Q microcavities in low-index one-dimensional photonic crystal slabs based on modal gap confinement".JOURNAL OF APPLIED PHYSICS 109.4(2011). |
入库方式： OAI收割
来源：物理研究所
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