.png){kind=icon}
返回
Giant optical nonlinearity interferences in quantum structures
.png){kind=icon}
OA
AI
DOI：10.1126/sciadv.aaw7554.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Second-order optical nonlinearities can be greatly enhanced by orders of magnitude in resonantly excited nanostructures. These resonant nonlinearities continually attract attention, particularly in newly discovered materials. However, they are frequently not as heightened as currently predicted, limiting their exploitation in nanostructured nonlinear optics. Here, we present a clear-cut theoretical and experimental demonstration that the second-order nonlinear susceptibility can vary by orders of magnitude as a result of giant destructive, as well as constructive, interference effects in complex systems. Using terahertz quantum cascade lasers as a model source to investigate interband and intersubband nonlinearities, we show that these giant interferences are a result of an unexpected interplay of the second-order nonlinear contributions of multiple light and heavy hole states. As well as of importance to understand and engineer the resonant optical properties of nanostructures, this advanced framework can be used as a novel, sensitive tool to elucidate the band structure properties of complex materials.
Keyword:
SIDE-BAND GENERATION
INTERSUBBAND TRANSITIONS
SUSCEPTIBILITY
TEMPERATURE
MONOLAYER
EXCITONS
CARRIER
GAAS
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
12.5
论文数:
2.1W
被引数:
18.1W
机构
引用论文
.png){kind=icon}
分享收藏
分享收藏
查看更多内容