Ultrafast and low-power photonic crystal all-optical switching with resonant cavities
文献类型：期刊论文
| 作者 | Liu, Y ; Qin, F ; Zhou, F ; Li, ZY |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2009 |
| 卷号 | 106期号:8 |
| 关键词 | BAND-GAP MATERIALS SILICON CHIP MICROCAVITY NONLINEARITIES DIODE LIGHT SLAB |
| ISSN号 | 0021-8979 |
| 通讯作者 | Liu, Y (reprint author), Chinese Acad Sci, Lab Opt Phys, Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We theoretically investigate and discuss the response time, switching contrast, and pump power of all-optical switching in a nonlinear photonic crystal structure with high quality factor (high-Q) cavity. For the response time of all-optical switching, the drop and rise time are considered, respectively. Moreover, we find that when the duration of pump pulse is shorter than the lifetime, the response curve of all-optical switching is asymmetric, and the drop time is determined by both the lifetime of high-Q cavity and duration of pump pulse, and the rise time is mainly determined by lifetime of high-Q cavity. In contrast, when the duration of pump pulse is much longer than the lifetime, the dynamic response curve is symmetric, and both the drop and rise time are determined by the duration of pump pulse. On the other hand, the pump power can be significantly reduced by using a setup where the probe beam is located at the high-Q cavity mode with very narrow linewidth. Furthermore, if the central wavelength of pump pulse is also set to match with this or another high-Q cavity mode, the pump power will be reduced further due to the large field enhancement within the photonic crystal, and more importantly there is no extra prolonged response time of all-optical switching. By this method, the pump power as low as 210 KW/cm(2) is observed in our model structure with the quality factor of only 32 096 for the ordinary polystyrene material. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3245331] |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10525419, 10634080]; National Basic Research Foundation of China [2007CB613205] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46304]  |
| 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 | Liu, Y,Qin, F,Zhou, F,et al. Ultrafast and low-power photonic crystal all-optical switching with resonant cavities[J]. JOURNAL OF APPLIED PHYSICS,2009,106(8). |
| APA | Liu, Y,Qin, F,Zhou, F,&Li, ZY.(2009).Ultrafast and low-power photonic crystal all-optical switching with resonant cavities.JOURNAL OF APPLIED PHYSICS,106(8). |
| MLA | Liu, Y,et al."Ultrafast and low-power photonic crystal all-optical switching with resonant cavities".JOURNAL OF APPLIED PHYSICS 106.8(2009). |
入库方式： OAI收割
来源：物理研究所
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