The role of the defect in photonic crystals based on WS2 or WSe2 monolayers: a vision on how to achieve high quality factor and wavelength adjustability in defect modes

Ansari Narges; Mohebbi Ensyieh; Nazari Effat

首页> 外文期刊>Optical and Quantum Electronics >The role of the defect in photonic crystals based on WS2 or WSe2 monolayers: a vision on how to achieve high quality factor and wavelength adjustability in defect modes

【24h】

The role of the defect in photonic crystals based on WS2 or WSe2 monolayers: a vision on how to achieve high quality factor and wavelength adjustability in defect modes

机译：The role of the defect in photonic crystals based on WS2 or WSe2 monolayers: a vision on how to achieve high quality factor and wavelength adjustability in defect modes

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Two-dimensional transition metal dichalcogenides materials play a pivotal role in photonics. Their placement in photonic crystals was proved effective in enhancing the absorption for a wide range of applications. In this paper, we study the symmetric and asymmetric defective photonic crystals (DPC) whose defects are formed by DMD where M indicates the WS2 or WSe2 monolayer and D represents SiO2 layer. The present study investigates the effects of the position of the defect layer in DPC on the absorption, FWHM, quality factor, number, and wavelength of the defect modes in both symmetric and asymmetric structures. We show that the amount of the absorption of defect modes in the case of WSe2 and WS2 is above 93% and 80% in symmetric and asymmetric structures, respectively. Further, in symmetric structures, FWHM of WS2 is broader than that of WSe2; in asymmetric structures, on the other hand, FWHM of WSe2 is wider than that of WS2. Also, Photonic band gap does not depend on the thickness of the defect layer, the symmetry or asymmetry of the structure, periodicity of the top and bottom defect layer of DMD. The proposed structures are likely to attract the attentions to their applications in photoelectric detectors, absorbent filters, solar cells, and the like.

著录项

来源
《Optical and Quantum Electronics》 |2023年第4期|共16页
作者
Ansari Narges; Mohebbi Ensyieh; Nazari Effat;
展开▼
作者单位

Alzahra Univ;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学;
关键词
Absorption; Defective photonic crystals; Full width half maximum; Symmetric and asymmetric structures; Two-dimensional transition metal dichalcogenides; LIGHT-ABSORPTION;

The role of the defect in photonic crystals based on WS2 or WSe2 monolayers: a vision on how to achieve high quality factor and wavelength adjustability in defect modes

摘要

著录项

相关主题

期刊订阅