Investigating the Optical Properties of a Laser Induced 3D Self-Assembled Carbon–Metal Hybrid Structure
| Autor: | Thomas Bauer, Lora Ramunno, Martin Neugebauer, Muhammad Abdullah Butt, Peter Banzer, Antonino Calà Lesina, Pierre Berini, Denis V. Danilov, Gerd Leuchs, Alessandro Vaccari, Yu. V. Petrov, Alina Manshina |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
computational modeling
Materials science Nanoparticle chemistry.chemical_element Physics::Optics 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Biomaterials Matrix (mathematics) law metal alloy nanoparticles General Materials Science Birefringence business.industry Metamaterial General Chemistry microscopic Müller matrix measurement technique 021001 nanoscience & nanotechnology Laser 0104 chemical sciences chemistry orthorhombic carbon Optoelectronics laser-induced deposition Orthorhombic crystal system 0210 nano-technology Hybrid material business Carbon Biotechnology |
| Zdroj: | Small (online), 15(18) |
| ISSN: | 1613-6810 |
| Popis: | Carbon-based and carbon–metal hybrid materials hold great potential for applications in optics and electronics. Here, a novel material made of carbon and gold–silver nanoparticles is discussed, fabricated using a laser-induced self-assembly process. This self-assembled metamaterial manifests itself in the form of cuboids with lateral dimensions on the order of several micrometers and a height of tens to hundreds of nanometers. The carbon atoms are arranged following an orthorhombic unit cell, with alloy nanoparticles intercalated in the crystalline carbon matrix. The optical properties of this metamaterial are analyzed experimentally using a microscopic Müller matrix measurement approach and reveal a high linear birefringence across the visible spectral range. Theoretical modeling based on local-field theory applied to the carbon matrix links the birefringence to the orthorhombic unit cell, while finite-difference time-domain simulations of the metamaterial relates the observed optical response to the distribution of the alloy nanoparticles and the optical density of the carbon matrix. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text