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|Title:||Nanophotonics sensor based on microcantilever for chemical analysis|
|Authors:||Xiang, W. |
Photonic crystal resonator
|Citation:||Xiang, W., Lee, C. (2009-09). Nanophotonics sensor based on microcantilever for chemical analysis. IEEE Journal on Selected Topics in Quantum Electronics 15 (5) : 1323-1326. ScholarBank@NUS Repository. https://doi.org/10.1109/JSTQE.2009.2016578|
|Abstract:||A Si-based cantilever sensor with photonic crystal (PC) resonator as readout for chemical sensing and analysis has been developed. The resonant wavelength shift of PC resonator is resulted from PC deformation induced by cantilever bending, in which this optical readout scheme facilitates cantilever deflection measurements in liquid. Through numerical simulation, we demonstrate that the detection capability of this micromechanical sensor operated in water is better than that of sensor operated in air. The minimum detectable Z-displacement and strain of Si/SiO2 cantilever sensor are derived as 0.6 μm and 0.0098% in water and 0.812 μm and 0.0144% in air, respectively. This novel micromechanical sensor shows its promising future in applications such as detection of proteins and DNA in solution. © 2009 IEEE.|
|Source Title:||IEEE Journal on Selected Topics in Quantum Electronics|
|Appears in Collections:||Staff Publications|
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