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A novel structure of silicon-on-insulator microring biosensor based on Young's two-slit interference and its simulation

Su Baoqing, Wang Chunxia, Kan Qiang, Li Junhua, Xie Yiyang, Wang Zhenzhen and Chen Hongda

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Abstract: A novel silicon-on-insulator microring biosensor based on Young's twoslit interference has been demonstrated. The transducer signal from electric field intensity distribution on the interference screen is given by using the transfer matrix method (TMM) and two-slit interference principle. The result shows that the structure we propose is advantageous for sensing as the interference pattern is very sensitive to the ambient refractive index around the microring. A small perturbation in refractive index around the microring Δnc will result in a notable shift of destructive interference points (DIPs) on the interference screen. By detecting the shift of the DIPs, the ambient refractive index change can be obtained.

Key words: silicon-on-insulatormicroringYoung's two-slit interferencebiosensor

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    Received: 18 August 2015 Revised: 28 March 2011 Online: Published: 01 July 2011

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      Su Baoqing, Wang Chunxia, Kan Qiang, Li Junhua, Xie Yiyang, Wang Zhenzhen, Chen Hongda. A novel structure of silicon-on-insulator microring biosensor based on Young's two-slit interference and its simulation[J]. Journal of Semiconductors, 2011, 32(7): 074010. doi: 10.1088/1674-4926/32/7/074010 Su B Q, Wang C X, Kan Q, Li J H, Xie Y Y, Wang Z Z, Chen H D. A novel structure of silicon-on-insulator microring biosensor based on Young\'s two-slit interference and its simulation[J]. J. Semicond., 2011, 32(7): 074010. doi: 10.1088/1674-4926/32/7/074010.Export: BibTex EndNote
      Citation:
      Su Baoqing, Wang Chunxia, Kan Qiang, Li Junhua, Xie Yiyang, Wang Zhenzhen, Chen Hongda. A novel structure of silicon-on-insulator microring biosensor based on Young's two-slit interference and its simulation[J]. Journal of Semiconductors, 2011, 32(7): 074010. doi: 10.1088/1674-4926/32/7/074010

      Su B Q, Wang C X, Kan Q, Li J H, Xie Y Y, Wang Z Z, Chen H D. A novel structure of silicon-on-insulator microring biosensor based on Young\'s two-slit interference and its simulation[J]. J. Semicond., 2011, 32(7): 074010. doi: 10.1088/1674-4926/32/7/074010.
      Export: BibTex EndNote

      A novel structure of silicon-on-insulator microring biosensor based on Young's two-slit interference and its simulation

      doi: 10.1088/1674-4926/32/7/074010
      • Received Date: 2015-08-18
      • Accepted Date: 2010-12-24
      • Revised Date: 2011-03-28
      • Published Date: 2011-06-22

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