Tilted fiber Bragg gratings (TFBGs) have shown to be a suitable tool for exciting surface plasmon waves in a comparable manner as in typical attenuated total reflection Kretschmann configurations. In this paper, we present a comparative analysis of the characteristics of prism and grating configurations for generating surface plasmon resonance (SPR) for 800 and 1550 nm wavelengths. Results indicate that longer wavelength SPR may present advantages in sensing. Recent label-free biochemical sensing results using NIR TFBGs with and without SPR coatings demonstrate limits of detection ranging from the nM to the pM range without the need for thermal stabilization.

Additional Metadata
Keywords biochemical sensors, optical fiber sensors, SPR sensors, Surface plasmon resonance, tilted fiber Bragg gratings
Persistent URL dx.doi.org/10.1109/JLT.2015.2431912
Journal Journal of Lightwave Technology
Albert, J, & Márquez-Cruz, Violeta. (2015). High Resolution NIR TFBG-Assisted Biochemical Sensors. Journal of Lightwave Technology, 33(16), 3363–3373. doi:10.1109/JLT.2015.2431912