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Resonant and Sensing Performance of Volume Waveguide Structures Based on Polymer Nanomaterials
Tatiana Smirnova1, Volodymyr Fitio2, Oksana Sakhno3
1Institute of Physics of NASU, Prospect Nauky, 46, 03028 Kyiv, Ukraine.
Nanomaterials (Basel, Switzerland)
|October 29, 2020
Summary
Researchers developed novel organic-inorganic photocurable nanocomposites for fabricating resonant waveguide structures (RWS). These structures offer high performance for sensing applications, enabling precise refractive index change detection.
Area of Science:
- Materials Science
- Optics
- Nanotechnology
Background:
- Organic-inorganic photocurable nanocomposites are crucial for advanced optical elements.
- Resonant waveguide structures (RWS) offer tunable filtering and sensing capabilities.
Purpose of the Study:
- To develop a new strategy for fabricating RWS using photocurable nanocomposites.
- To investigate waveguide gratings with volume refractive index modulation for enhanced performance.
Main Methods:
- Fabrication of RWS using a novel photocurable organic-inorganic nanocomposite.
- Holographic method for creating volume refractive index modulation in waveguide gratings.
- Development of a special compression method for thin photosensitive waveguide layers.
Main Results:
- Demonstrated narrow resonant peaks (<0.012 nm bandwidth) and high Q-factor (>50,000).
- Achieved minimal refractive index (RI) change detection of 1 x 10^-4 RIU.
- Presented a new theoretical model for RWS analysis and design.
Conclusions:
- The developed nanocomposite RWS exhibit excellent resonant and sensing properties.
- Holographic fabrication enables large-scale, homogeneous waveguide structures.
- The new theoretical model simplifies the design and analysis of RWS sensors.
