Temperature stability of Bloch surface wave biosensors
Temperature stability of Bloch surface wave biosensors
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DOI：
10.1063/1.3666031
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发表时间：
2011-12-05
影响因子：
4
通讯作者：
Descrovi, Emiliano
中科院分区：
文献类型：
--
作者：
Michelotti, Francesco;Descrovi, Emiliano
报道了基于非晶氮化硅/硅一维光子晶体（1DPC）上布洛赫表面波（BSW）耦合的生物传感器的热敏特性的实验研究。结果表明，硅合金对外界介质中发生的热光效应具有补偿作用，并表明通过合理设计一维光子晶体的布局，可以制作出一类温度不敏感的生物传感器。实验结果与基于传递矩阵方法的数值模拟结果非常吻合。此外，BSW生物传感器的温度测量分辨率为0.03摄氏度。(C)2011年美国物理学会。[doi：10.1063/1.3666031]
We report on the experimental characterization of the thermal sensitivity of biosensors based on the coupling of Bloch surface waves (BSW) on amorphous silicon nitride/silicon one dimensional photonic crystals (1DPC). The results show that the silicon alloys compensate the thermo-optic effect taking place in the external medium and indicate that a class of temperature insensitive biosensors can be fabricated by properly designing the layout of the 1DPC. The experimental results are in very good agreement with numerical simulations based on a transfer matrix approach. Moreover, the BSW biosensors show a resolution of 0.03 degrees C for the measurement of temperature. (C) 2011 American Institute of Physics. [doi:10.1063/1.3666031]