High Resolution NIR TFBG-Assisted Biochemical Sensors
Journal of Lightwave Technology , Volume 33 - Issue 16 p. 3363- 3373
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.
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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