Polarized GaN-based LED with an integrated multi-layer subwavelength structure
文献类型：期刊论文
| 作者 | Wang JF (王建峰) ; Xu K (徐科); Zhang BS (张宝顺); Huang ZL (黄增立)
|
| 刊名 | Optics Express
 |
| 出版日期 | 2010-03-29 |
| 期号 | 7 |
| 通讯作者 | Zhang, GJ |
| 合作状况 | 其它 |
| 英文摘要 | A novel type of GaN-based LED with a highly polarized output using an integrated multi-layer subwavelength grating structure is proposed. Characteristics of both optical transmission and polarization extinction ratio of the polarized GaN-based LED with three different multi-layer subwavelength structures are investigated. It is found that both TM transmission (T(TM)) and the extinction ratio(ER) of the LED output can be effectively enhanced by incorporating a dielectric transition layer between the metal grating and GaN substrate with a lower refractive index than that of the GaN substrate. Flat sensitivity of the T(TM) on the period, duty cycle of the metallic grating, and the wide range of operating wavelength have been achieved in contrast to the conventional sensitive behavior in single-layer metallic grating. Up to 0.75 high duty cycle of the metallic grating can be employed to achieve >60dB ER while T(TM) maintains higher than similar to 90%, which breaks the conventional limit of T(TM) and ER being always a pair of trade-off parameters. Typical optimized multilayer structures in terms of material, thickness, grating periods and duty cycle using MgF(2) and ZnS, respectively, as the transition layers are obtained. The results provide guidance in designing, optimizing and fabricating the novel integrated GaN-based and polarized photonic devices. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000276602000057 |
| 公开日期 | 2010-12-31 |
| 源URL | [http://58.210.77.100/handle/332007/290]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米加工公共平台 |
| 推荐引用方式 GB/T 7714 | Wang JF ,Xu K ,Zhang BS ,et al. Polarized GaN-based LED with an integrated multi-layer subwavelength structure[J]. Optics Express,2010(7). |
| APA | Wang JF ,Xu K ,Zhang BS ,&Huang ZL .(2010).Polarized GaN-based LED with an integrated multi-layer subwavelength structure.Optics Express(7). |
| MLA | Wang JF ,et al."Polarized GaN-based LED with an integrated multi-layer subwavelength structure".Optics Express .7(2010). |
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