Fabrication of Straight Optical Waveguides Based on SnO₂ Nanomaterials

Abstract

The manufacture technology of thin film waveguides had done by placing a solution of tin dioxide (SnO 2 ) on the glass substrate. The structure of the straight waveguide consists of a slide glass substrate, waveguide using tin oxide film, and the cover waveguide is the MMA (Methyl Methacrylate) film. The method for making this waveguides, the waveguide was fabricated using the spin coating method and photolithography technique. The method for making this waveguides, the waveguide was fabricated using the spin coating method and photolithography technique. Analysis of the intensity of the input and output on a straight channels waveguide is done by an optical microscope with the light source of He-Ne laser. The results have obtained the multimode waveguides with the average thickness of straight channels is 16.67 μm.

All-Optical Humidity Sensor Using SnO2 Nanoparticle Drop Coated on Straight Channel Optical Waveguide

“…2(b) indicates that the grain size of SnO 2 is larger than the crystallite size calculated with the XRD pattern. We believe that the agglomeration of SnO 2 nanoparticles took place, which resulted in a larger SnO 2 grain [21].…”