摘要
光电探测器可以实现光信号到电信号的转换,在工业、军事、医疗等领域已展现出巨大的应用价值。但是,传统的平直型光电探测器捕获线光的能力较弱,一定程度上限制了响应率等性能指标的进一步提高。而基于贵金属纳米结构的表面等离激元共振可以急剧增强近场区域的(纳米尺度)电场强度和对线光的捕获能力,大幅度地提高光电探测器性能。本文首先介绍了表面等离激元的基本原理。随后,详细介绍了金属纳米颗粒、金属光栅等不同结构的表面等离激元增强型光电探测器研究进展。最后,总结全文并针对表面等离激元增强型光电探测器的发展前景做出了展望。
Photodetectors can realize the conversion of optical signal to electrical signal,and have shown great application value in the fields of industry,military,medical treatment and so on.However,the traditional flat photodetector has a weak ability to capture line light,which limits the further improvement of responsiveness and other performance indicators to a certain extent.Surface plasmon resonance effect based on noble metal nanostructure can dramatically enhance the electric field intensity in the near field region and strengthen the ability of the photodetector to capture the line light,thus greatly improve the performance of photodetector.In this paper,the basic principle of surface plasmons is introduced at first.Then,the research progress of surface plasmon enhanced photodetectors with different structures,such as metal nanoparticles and metal gratings,is introduced in detail.Finally,the thesis is summarized and the development prospect of surface plasmon enhanced photodetectors is put forward.
作者
苏宛然
冯琳
石林林
张叶
王文艳
李国辉
冀婷
郝玉英
崔艳霞
SU Wan-ran;FENG Lin;SHI Lin-lin;ZHANG Ye;WANG Wen-yan;LI Guo-hui;JI Ting;HAO Yu-ying;CUI Yan-xia(College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2021年第7期1014-1028,共15页
Chinese Journal of Luminescence
基金
国家自然科学基金(61775156,61922060,61805172,61905173)
山西省重点研发(国际合作)项目(201803D421044)
霍英东教育基金会高等院校青年教师基金资助项目。
关键词
传播型表面等离激元
局域表面等离激元
光电探测器
金属纳米颗粒
金属光栅
propagating surface plasmon polaritons
localized surface plasmon polaritons
photodetector
metal nanoparticles
metal grating
