The invention relates to a range expansion pressure sensor, which is realized by using a two-dimensional photonic crystal micro cavity array and a double beam structure of a lattice gradual type, which belongs to the technical field of the photonic crystal sensor. The present invention applies the design of two-dimensional photonic crystal lattice graded structure is applied to the sensor array, the first application of a plurality of micro cavity cooperative measurement of a physical quantity to be measured, provided the conditions for the photonic crystal sensor array with high sensitivity and wide range. Through the design of a micro cavity located in different lattice constant regions, the resonant frequency of the three micro cavities is different, so that the resonant peaks of different frequencies can be obtained in the transmission spectrum of the output terminal. When the deformation of the beam, the displacement of the beam on the different levels of the sensor column in turn into the micro cavity, so that Xie Zhenfeng has successively shifted to achieve a large number of sensor. The sensor array in the design of the invention has the advantages of scalability, and provides a method for realizing the expansion of the photon sensor array with the measurement range.
【技术实现步骤摘要】
本专利技术涉及一种利用晶格渐变型二维光子平板与交叉双横梁结构的压力传感器的实现方法,属于光子晶体传感器
技术介绍
自光子晶体这一物理概念在上世纪八十年代末提出以来,随着微纳加工制备技术的发展,各种光子晶体器件在理论、实验和应用方面都取得了很大的进展。其中,光子晶体传感器作为一种新型的微纳传感器,由于其典型的高灵敏度、高分辨率、响应迅速、抗干扰、可微型化、可复用以及可集成度高等优势,目前关于光子晶体传感器的研究已成为国内外研究内容的热点之一。迄今为止,光子晶体传感器的研究主要集中于折射率传感器(文献1,IanM.WhiteandXudongFan,Ontheperformancequantificationofresonantrefractiveindexsensors,OpticsExpress,vol.16,pp.1020-1028,(2008)),温度传感器(文献2,YongqinYu,XuejinLi,XuemingHong,YuanlongDeng,KuiyanSong,YoufuGeng,HuifengWei,andWeijunTong,Somefeaturesofthephotoniccrystalfibertemperaturesensorwithliquidethanolfilling,OpticsExpress,vol.18,pp.15383-15388,(2010)),位移传感器(文献3,WonjooSuh,M.F.Yanik,OlavSolgaard,andShanhuiFan,Displacement-sensitive ...
【技术保护点】
一种基于晶格渐变型光子晶体结构及交叉双横梁结构的可扩量程压力传感器。其中:该光子晶体传感器阵列是基于三维光子晶体的晶格渐变型空气孔三角晶格结构。交叉双横梁结构包括了两块相互垂直的硅横梁,其中一块横梁上集成有3个高度等差的硅传感柱。
【技术特征摘要】
1.一种基于晶格渐变型光子晶体结构及交叉双横梁结构的可扩量程压力传感器。其中:该光子晶体传感器阵列是基于三维光子晶体的晶格渐变型空气孔三角晶格结构。交叉双横梁结构包括了两块相互垂直的硅横梁,其中一块横梁上集成有3个高度等差的硅传感柱。2.根据权利1所述的结构,其特征在于利用晶格渐变型光子晶体实现阵列传感器的设计,本方案中采...
【专利技术属性】
技术研发人员:田慧平,丁兆祥,王春红,孙富君,付中原,
申请(专利权)人:北京邮电大学,
类型:发明
国别省市:北京;11
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