TY - JOUR
AU - Schade, Wolfgang
AB - We present a novel planar polymer ridge waveguide evanescent sensor for lab-on-a-chip applications. The integrated sensor is based on post-processing of Bragg gratings for the near-infrared (NIR) wavelength range by applying a femtosecond laser point-by-point (pbp) inscription technique. In general, this pbp inscription method offers a flexible selection of the Bragg grating wavelength from UV to NIR. The optical evanescent field sensor was tested with different substances with different refractive indices, demonstrating an increased sensitivity. Finally, the sensor was coated with palladium nanoparticles. With this functional coating, the polymer Bragg grating sensor is capable of hydrogen detection up to 4% concentration.
TI - Optical evanescent field sensor based on point-by-point laser inscribed Bragg grating in planar polymer ridge waveguide
JF - Proceedings of SPIE
DO - 10.1117/12.3002485
DA - 2024-03-08
UR - https://www.deepdyve.com/lp/spie/optical-evanescent-field-sensor-based-on-point-by-point-laser-DJFz01yPIA
SP - 128820C
EP - 128820C-5
VL - 12882
IS - 
DP - DeepDyve
ER -