Hybrid polymer-titania waveguides for highly integrated circuits

Isaac Doughan, Kehinde Oyemakinwa, Olli Ovaskainen, Matthieu Roussey, M.F. Costa, M. Flores-Arias, G. Pauliat, P. Segonds
2022 EPJ Web of Conferences  
We present an innovative waveguide based on the hybridization of a titanium dioxide nano-waveguide within a polymer strip. Through simulations and design we demonstrate that the waveguide sustains principally the quasi-TM fundamental mode and that even in tight bends (radius smaller than 2 μm) light remains confined in the titania layer. Such a waveguide, in addition of enabling low loss propagation is a way towards efficient evanescent sensing in highly integrated scheme, i.e., small
more » ... We also show that the fabrication, here based on electron beam lithography and atomic layer deposition, can be extended easily to large scale manufacturing using nanoimprinting technology.
doi:10.1051/epjconf/202226601006 fatcat:tuzhfwwhvfbutn3bw4wteh34ka