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Tunable Mie resonance in complex-shaped gadolinium niobate
Anastasiya Sedova1,2, David Bermudez3, Miriam M Tellez-Cruz4
1Nanociencias y Nanotecnología, Centro de Investigación y de Estudios Avanzados del IPN, Av. IPN 2508, Col. San Pedro Zacatenco, A P 14-740, 07360, Ciudad de México, Mexico.
Nanotechnology
|October 11, 2023
Summary
Researchers tuned nanoscale optical properties of gadolinium niobate particles. Controlling particle shape and size precisely controls the Mie resonance peak for advanced optical applications.
Area of Science:
- Materials Science
- Optics
- Nanotechnology
Background:
- Nanoscale particles exhibiting Mie resonance are crucial for optical applications.
- Precise control over particle shape and size dictates the wavelength of the Mie resonance peak.
Purpose of the Study:
- To investigate the scattering properties of gadolinium niobate particles with complex shapes.
- To model and understand the Mie resonance behavior in the UV-vis-NIR region.
Main Methods:
- Experimental characterization of morphology and extinction spectra.
- Theoretical modeling using a Mie scattering model for spherical particle distributions.
- Separation of dipole, quadrupole, and octupole contributions to Mie resonances.
Main Results:
- Accurate modeling of size distribution and extinction spectra for complex-shaped particles.
- Isolation of aggregate contributions to extinction spectra.
- Demonstrated tunability of the Mie resonance peak via nanoscale properties.
Conclusions:
- Dielectric gadolinium niobate submicron particles offer tunable light manipulation capabilities.
- These particles are promising for designing enhanced lasing and luminescence systems.
- The study provides insights into controlling optical properties through nanoscale engineering.
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