Spontaneous-emission control by local density of states of photonic crystal cavity
文献类型：期刊论文
| 作者 | Jiang Bin1; Zhang Ye-Jin1; Zhou Wen-Jun1; Chen Wei1; Liu An-Jin1; Zheng Wan-Hua1,2 |
| 刊名 | Chinese physics b
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 20期号:2页码:6 |
| 关键词 | Spontaneous emission Local density of states Photonic crystal cavity |
| ISSN号 | 1674-1056 |
| DOI | 10.1088/1674-1056/20/2/024208 |
| 通讯作者 | Zheng wan-hua(whzheng@semi.ac.cn) |
| 英文摘要 | The local density of states (ldos) of two-dimensional square lattice photonic crystal (phc) defect cavity is studied. the results show that the ldos in the centre is greatly reduced, while the ldos at the point or the centre (for example, at the point (0.3a, 0.4a), where a is the lattice constant) is extremely enhanced. further, the disordered radii are introduced to imitate the real devices fabricated in our experiment, and then we study the ldos of phc cavity with configurations of different disordered radii. the results show that in the disordered cavity, the ldos in the centre is still greatly reduced, while the ldos at the point (0.3a, 0.4a) is still extremely enhanced. it shows that the ldos analysis is useful. when a laser is designed on the basis of the square lattice phc rod cavity, in order to enhance the spontaneous emission, the active materials should not be inserted in the centre of the cavity, but located at positions off the centre. so ldos method gives a guide to design the positions of the active materials (quantum dots) in the lasers. |
| WOS关键词 | DEFECT |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000286970600041 |
| 出版者 | IOP PUBLISHING LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428103 |
| 专题 | 半导体研究所 |
| 通讯作者 | Zheng Wan-Hua |
| 作者单位 | 1.Chinese Acad Sci, Inst Semicond, Nanooptoelect Lab, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang Bin,Zhang Ye-Jin,Zhou Wen-Jun,et al. Spontaneous-emission control by local density of states of photonic crystal cavity[J]. Chinese physics b,2011,20(2):6. |
| APA | Jiang Bin,Zhang Ye-Jin,Zhou Wen-Jun,Chen Wei,Liu An-Jin,&Zheng Wan-Hua.(2011).Spontaneous-emission control by local density of states of photonic crystal cavity.Chinese physics b,20(2),6. |
| MLA | Jiang Bin,et al."Spontaneous-emission control by local density of states of photonic crystal cavity".Chinese physics b 20.2(2011):6. |
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来源：半导体研究所
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