.png){kind=icon}
返回
Single Nanoparticle Detection Using Optical Microcavities
.png){kind=icon}
PRE
AI
DOI：10.1002/adma.201604920.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Detection of nanoscale objects is highly desirable in various fields such as early-stage disease diagnosis, environmental monitoring and homeland security. Optical microcavity sensors are renowned for ultrahigh sensitivities due to strongly enhanced light-matter interaction. This review focuses on single nanoparticle detection using optical whispering gallery microcavities and photonic crystal microcavities, both of which have been developing rapidly over the past few years. The reactive and dissipative sensing methods, characterized by light-analyte interactions, are explained explicitly. The sensitivity and the detection limit are essentially determined by the cavity properties, and are limited by the various noise sources in the measurements. On the one hand, recent advances include significant sensitivity enhancement using techniques to construct novel microcavity structures with reduced mode volumes, to localize the mode field, or to introduce optical gain. On the other hand, researchers attempt to lower the detection limit by improving the spectral resolution, which can be implemented by suppressing the experimental noises. We also review the methods of achieving a better temporal resolution by employing mode locking techniques or cavity ring up spectroscopy. In conclusion, outlooks on the possible ways to implement microcavity-based sensing devices and potential applications are provided.
Keyword:
WHISPERING-GALLERY MODES
LABEL-FREE DETECTION
SENSITIVITY ENHANCEMENT
RAYLEIGH-SCATTERING
PARTICLE DETECTION
RING-RESONATOR
QUALITY FACTOR
SENSORS
MICROSPHERE
SHIFT
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:
26.8
论文数:
3.5W
被引数:
46.0W
机构
引用论文
分享收藏
Quantum-Dot-Doped Polymer Nanofibers for Optical Sensing量子点掺杂聚合物纳米纤维光学传感研究.png)
ADVANCED MATERIALS
ADVANCED MATERIALSIF26.8
PREAI
分享收藏Nanostructured Materials for Room-Temperature Gas Sensors用于室温气体传感器的纳米结构材料ADVANCED MATERIALS
ADVANCED MATERIALSIF26.8
PREAI
分享收藏
查看更多内容