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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-24 9:28 |
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Conference: Bucharest University Faculty of Physics 2024 Meeting
Section: Polymer Physics
Title:
Designing New Photonic BandGap Tunnable Micro-Structures
Authors:
Valentin BARNA(1), Catalin BERLIC(1) and Lucian Dragos FILIP(2)
Affiliation:
1) University of Bucharest, Faculty of Physics, PO Box MG 11, Magurele-Bucharest, Romania.
2) National Institute of Materials Physics, Bucharest-Magurele, 077125, Romania.
E-mail
barnavalentin@yahoo.com
Keywords:
Photonic BandGap Structures, Soft Materials, Periodic Structures, Optical Amplification
Abstract:
We present the initial findings about simulating the potential formation of PBG (Photonic BandGap) structures in systems composed of periodic or aperiodic layers made from different materials (including Nematics, Polymers, air etc) for use as adjustable compact light amplification systems or optical reflectors in the visible and NIR-IR spectra. Our study includes simulations for various potential periodic systems of micrometer size length, made from sandwiched materials having refractive optical indices in the range 1 - 1.8. By selecting appropriate slice lengths and material combinations we can achieve customizable high-quality optical amplifiers and laser devices for specific wavelengths, but also highly personalized bandpass and notch optical filters. Employing birefringent materials (such as liquid crystals) enables us to actively adjust and fine-tune these PBG devices in real-time, offering a wider range of applications and increased versatility in the fields of optics, photonics and nanotechnologies.
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