Development of an Optical Waveguide Interferometric Immunosensor

  title={Development of an Optical Waveguide Interferometric Immunosensor},
  author={R. G. Heideman},
A Mach-Zehnder interferometer is presented, which uses the evanescent field of a planar optical waveguide as the sensing element. Changes in the refractive index profile occurring in the immediate vicinity of the waveguide surface cause the propagation velocity of the light passing through it to change. This is measured interferometrically. Adsorption… CONTINUE READING