Porous Silicon Based Resonant Mirrors for Biochemical Sensing
AbstractWe report on our preliminary results in the realization and characterization of a porous silicon (PSi) resonant mirror (RM) for optical biosensing. We have numerically and experimentally studied the coupling between the electromagnetic field, totally reflected at the base of a high refractive index prism, and the optical modes of a PSi waveguide. This configuration is very sensitive to changes in the refractive index and/or in thickness of the sensor surface. Due to the high specific area of the PSi waveguide, very low DNA concentrations can be detected confirming that the RM could be a very sensitive and labelfree optical biosensor.
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De Tommasi, E.; De Stefano, L.; Rea, I.; Di Sarno, V.; Rotiroti, L.; Arcari, P.; Lamberti, A.; Sanges, C.; Rendina, I. Porous Silicon Based Resonant Mirrors for Biochemical Sensing. Sensors 2008, 8, 6549-6556.
De Tommasi E, De Stefano L, Rea I, Di Sarno V, Rotiroti L, Arcari P, Lamberti A, Sanges C, Rendina I. Porous Silicon Based Resonant Mirrors for Biochemical Sensing. Sensors. 2008; 8(10):6549-6556.Chicago/Turabian Style
De Tommasi, Edoardo; De Stefano, Luca; Rea, Ilaria; Di Sarno, Valentina; Rotiroti, Lucia; Arcari, Paolo; Lamberti, Annalisa; Sanges, Carmen; Rendina, Ivo. 2008. "Porous Silicon Based Resonant Mirrors for Biochemical Sensing." Sensors 8, no. 10: 6549-6556.