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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 706-710 |
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Lotfiani A, Mohseni Armaki S M, Ghanaatshoar M. Surface plasmon photovoltaic biosensor with Fano resonance in Krishmann configuration. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :706-710
URL: http://opsi.ir/article-1-2461-en.html
URL: http://opsi.ir/article-1-2461-en.html
1- Laser and Plasma Research Institute, Shahid Beheshti University, G.C., Evin, 1983969411Tehran, Iran
2- Faculty of Physics, Shahid Beheshti University, G.C. Evin, 1983969411 Tehran, Iran
2- Faculty of Physics, Shahid Beheshti University, G.C. Evin, 1983969411 Tehran, Iran
Abstract: (736 Views)
In this study, we propose a compact high-sensitivity surface plasmon biosensor with an electrical response based on Fano resonance in M-I-TCO junction integrated with the planar waveguide. The SPR excitation of the M-I-TCO junction enhances the photoabsorption and hot electrons generation, which can produce photocurrent. We demonstrate that the coupling between the MIM junction surface plasmon and wavegude modes can result in modulation of output photocurrent by variation of analyte refractive index. The response of this sensor was calculated in detail and the results showed that the Fano-like profile appears in the photocurrent curve as well as the reflectivity curve which have enhanced sensitivity of biosensors to 66 mA/RIU
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