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Variable incidence angle subwavelength grating SPR graphene biosensor
conference contributionposted on 2013-01-01, 00:00 authored by Saiful Islam, Abbas KouzaniAbbas Kouzani
This paper investigates the sensitivity enhancement of a variable incidence angle subwavelength grating based multilayer surface plasmon resonance biosensor (SPRB). In the proposed design, a periodic array of subwavelength grating is integrated on top of a layer of graphene sheet in the multilayer SPR biosensor. The performance of the biosensor is investigated through monitoring the biomolecular interactions of cDNA-ssDNA interactions on its surface. The sensitivity improvement is indicated by the shift of the resonance peak angle.