Ultra-broadband depolarization based on directly-coupled quantum wire-to-well modulation and their aliasing effect for polarization-insensitive light-emitting diodes
文献类型：期刊论文
| 作者 | Y. Wang, H. Tai, R. Duan, M. Zheng, Y. Shi, J. Zhang, X. Zhang, Y. Ning and J. Wu |
| 刊名 | Nanoscale
 |
| 出版日期 | 2023 |
| 卷号 | 15期号:44页码:18044-18052 |
| ISSN号 | 20403364 |
| DOI | 10.1039/d3nr04423h |
| 英文摘要 | Nowadays, strained quantum structures have been widely used in various light-emitting devices with a variety of compounds for progressive applications. However, the lattice-mismatch-induced strains in the materials would cause a problem of polarization dependence for polarization-independent optical applications. To address this issue, in this paper we propose a novel ultra-broadband depolarization mechanism and approach based on a directly-coupled well-wire-hybrid nanostructure. It contains quantum wire-to-well modulation and their aliasing effects on strain, energy-band structure and optical gain to obtain independent and comparable bipolarization of optical signals. The material structure involves a special well and on-well quantum wires with gradually-changing band-gaps, which are formed by utilizing the indium (In)-segregation effect and the growth-orientation-dependent multi-atomic step effect. With this special hybrid nanostructure, the depolarization efficiency can be 95% higher than that of a single compressive-strained quantum well. A low polarization degree of 0.05 and a very small gain difference of |GTE − GTM| −1 in different polarizations are achieved over a very broad gain bandwidth (870-950 nm) for an InGaAs material system. Therefore, this is a new chance for the development of ultra-broadband and polarization-insensitive optical applications. © 2023 The Royal Society of Chemistry. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/67994]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Y. Wang, H. Tai, R. Duan, M. Zheng, Y. Shi, J. Zhang, X. Zhang, Y. Ning and J. Wu. Ultra-broadband depolarization based on directly-coupled quantum wire-to-well modulation and their aliasing effect for polarization-insensitive light-emitting diodes[J]. Nanoscale,2023,15(44):18044-18052. |
| APA | Y. Wang, H. Tai, R. Duan, M. Zheng, Y. Shi, J. Zhang, X. Zhang, Y. Ning and J. Wu.(2023).Ultra-broadband depolarization based on directly-coupled quantum wire-to-well modulation and their aliasing effect for polarization-insensitive light-emitting diodes.Nanoscale,15(44),18044-18052. |
| MLA | Y. Wang, H. Tai, R. Duan, M. Zheng, Y. Shi, J. Zhang, X. Zhang, Y. Ning and J. Wu."Ultra-broadband depolarization based on directly-coupled quantum wire-to-well modulation and their aliasing effect for polarization-insensitive light-emitting diodes".Nanoscale 15.44(2023):18044-18052. |
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