ArticleInternational journal of molecular sciences2022
Subwavelength Grating Waveguide Structures Proposed on the Low-Cost Silica-Titania Platform for Optical Filtering and Refractive Index Sensing Applications.
Article in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Experimental Characterization of a Silicon Nitride Asymmetric Loop-Terminated Mach-Zehnder Interferometer with a Refractive Index-Engineered Sensing Arm.Nanomaterials (Basel, Switzerland) · 2025Article
- Mid-Infrared Photonic Sensors: Exploring Fundamentals, Advanced Materials, and Cutting-Edge Applications.Sensors (Basel, Switzerland) · 2025Review
- Plasmonic Sensors Based on a Metal-Insulator-Metal Waveguide-What Do We Know So Far?Sensors (Basel, Switzerland) · 2024Review
- Racetrack Ring Resonator-Based on Hybrid Plasmonic Waveguide for Refractive Index Sensing.Micromachines · 2024Article
- Interfacial Bond Properties of Underwater Concrete Coated with Bisphenol A Epoxy Resins.Polymers · 2023Article
- Advances in Waveguide Bragg Grating Structures, Platforms, and Applications: An Up-to-Date Appraisal.Biosensors · 2022Review
- Optical Thin Films Fabrication Techniques-Towards a Low-Cost Solution for the Integrated Photonic Platform: A Review of the Current Status.Materials (Basel, Switzerland) · 2022Review
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Authors and funding
6 authors.
Funding
Abstract
The sol−gel dip-coating method is a cost-efficient way for the realization of thin films on a planar substrate. In this work, high-quality, low-loss, and low-surface roughness silica−titania thin films are deposited on a glass substrate with the sol−gel dip-coating method. This platform works in the visible to near-IR wavelength ranges and can be useful for several eye-catching photonic components. The paper is comprised of two parts: the first part deals with the development of a low-cost silica−titania waveguide system, whereas the second part provides detail on the numerical modeling of the SWG waveguide filter and SWG waveguide FP-sensor design. The SWG waveguide NIR-stopband filter can achieve an ER of >40 dB and 3-dB bandwidth of 110 nm designed at optimized parameters. The SWG waveguide-FP structure proposed in this work act as a refractive index sensor where the sensitivity is ~120 nm/RIU by reducing the width of the waveguide. This sensitivity can be further enhanced by reducing the waveguide height. We believe that this work is quite important for the realization of low-cost integrated photonic devices based on the silica−titania platform developed via the sol−gel dip-coating method.
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