太赫兹波段光子晶体温度传感器的研究
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摘要
使用对太赫兹波段有吸收效应的掺杂硅设计光子晶体结构,使得在光子带隙内的光波被吸收,并加上金属反射镜面将光子晶体的吸收峰和法布里-珀罗(F-P)谐振吸收峰结合,使此结构在0.29～0.31 THz波段达到宽频吸收,并且在0.31～0.34 THz波段通过测量光子晶体的反射率可以计算出对应温度。在使用商业电磁仿真软件CST2014仿真和优化参数后,反射率对应温度变化的变化范围是0.09～0.36,即最大值与最小值有4倍之差,这一特性表明,此结构的反射率变化随温度变化十分明显,是一款十分灵敏的温度传感器。此外,在入射角不大于40°时,结构性能依然良好。
In this paper, the photonic crystal structure was designed using the doped silicon which has absorption effect on terahertz band. As a result, the light wave in the photonic band gap was absorbed. In addition, the reflective mirror of metal facilitated the combination of the absorption peak of photonic crystal and Fabry-Perot(F-P) resonant absorption peak. Thus, as this structure was not affected by temperature changes in 0.31-0.34 THz band, it could achieve broadband absorption.Moreover, the 0.29-0.31 THz band had the temperature sensing function. By using the commercial electromagnetic simulation software CST2014 to stimulate the optimization parameter, a photonic crystal-based temperature sensor with large incidence angle was designed. The reflectivity would change with the linear variation of temperature.
In this paper, the photonic crystal structure was designed using the doped silicon which has absorption effect on terahertz band. As a result, the light wave in the photonic band gap was absorbed. In addition, the reflective mirror of metal facilitated the combination of the absorption peak of photonic crystal and Fabry-Perot(F-P) resonant absorption peak. Thus, as this structure was not affected by temperature changes in 0.31-0.34 THz band, it could achieve broadband absorption.Moreover, the 0.29-0.31 THz band had the temperature sensing function. By using the commercial electromagnetic simulation software CST2014 to stimulate the optimization parameter, a photonic crystal-based temperature sensor with large incidence angle was designed. The reflectivity would change with the linear variation of temperature.
引文
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[15]孙继洋,王晓萍,宓云軿.基于紫外吸收原理的在线水质COD测量仪设计[J].光学仪器,2006,28(2):76-79.
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[17]胡明列,柴路,王清月,等.硅基VO2纳米薄膜光致绝缘体-金属相变的THz时域频谱研究[J].物理学报,2010,59(11):7857-7862.
[18]陆志仁,梁斌明,丁俊伟,等.近零折射率材料的古斯汉欣位移的特性研究[J].物理学报,2016,65(15):154208.
[2]张检发,袁晓东,秦石乔.可调太赫兹与光学超材料[J].中国光学,2014,7(3):349-364.
[3]彭滟,陈万青,罗洁.神经递质与代谢物混合物的太赫兹波谱的识别与量化[J].光学仪器,2017,39(2):18-25.
[4]苏云云.液态一元醇的太赫兹时域光谱研究[J].光学仪器,2014,36(6):499-503.
[5]齐娜,张卓勇,相玉红.太赫兹技术在医学检测和诊断中的应用研究[J].光谱学与光谱分析,2013,33(8):2064-2070.
[6]曾辉,杨亚培,戴基智,等.光子晶体光子禁带影响因素的综述[J].光学仪器,2006,28(3):86-89.
[7]朱路,王杨,熊广,等.宽波段的纳米超材料太阳能吸收器及特性研究[J].光学学报,2017,37(9):0923001.
[8]KOMATSU R,BAL?YTIS A,SENIUTINAS G,et al.Plasmonic photo-thermoelectric energy converter with black-Si absorber[J].Solar Energy Materials and Solar Cells,2015,143:72-77.
[9]陈颖,罗佩,田亚宁,等.含金属双缝的金属-电介质-金属波导耦合环形腔Fano共振慢光特性研究[J].光学学报,2017,37(9):288-293.
[10]苏安.晶格常数对光子晶体量子阱透射谱的影响[J].红外与激光工程,2013,42(1):200-205.
[11]于国君,卜胜利,王响,等.基于硅柱-磁性液体体系的光子晶体的可调谐负折射特性研究[J].物理学报,2012,61(19):194703.
[12]温建华,张杨,杨毅彪,等.基于空气缺陷的光子晶体可调谐滤波器[J].光子学报,2015,44(8):160-167.
[13]高伦,梁斌明,王婷,等.基于光子晶体和法布里珀罗腔结构的折射率传感器[J].光学仪器,2016,38(3):248-251.
[14]陈刚,孙维国,吕衍秋.高工作温度InAlSb红外探测器的研究进展[J].红外,2016,37(2):1-6.
[15]孙继洋,王晓萍,宓云軿.基于紫外吸收原理的在线水质COD测量仪设计[J].光学仪器,2006,28(2):76-79.
[16]KAKIMI R,FUJITA M,NAGAI M,et al.Capture of a terahertz wave in a photonic-crystal slab[J].Nature Photonics,2014,8(8):657-663.
[17]胡明列,柴路,王清月,等.硅基VO2纳米薄膜光致绝缘体-金属相变的THz时域频谱研究[J].物理学报,2010,59(11):7857-7862.
[18]陆志仁,梁斌明,丁俊伟,等.近零折射率材料的古斯汉欣位移的特性研究[J].物理学报,2016,65(15):154208.