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Verhandlungen
Verhandlungen
DPG

Dresden 2020 – scientific programme

The DPG Spring Meeting in Dresden had to be cancelled! Read more ...

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O: Fachverband Oberflächenphysik

O 123: Nanostructured Surfaces and Thin Films III: Dots, Particles, Clusters (joint session O/CPP)

O 123.4: Talk

Friday, March 20, 2020, 11:15–11:30, WIL B321

Ordered structures with functional units from artificial alumina membranes — •Wenxin Wang — Photonic Materials Group, College of Physics and Optoelectronic Engineering, Harbin Engineering University,15001 Harbin, China

Constructing ordered structures with functional units (OSFU) gives opportunities to improve, modify intrinsic performances of ordered structures, even render novel properties. Here I report an approach to realize OSFU through artificial alumina membranes (AAMs), single and multi-order structure(s) are functionalized with plasmonic and (or) smart polymer unit to check their mesoscopic optical behaviors. For instance, AAMs are directly used as OSFU to achieve structural color imaging with high reflectivity. Second, functionalize units with plasmonic materials to obtain enhanced local field and resonance modes hybridization, in order to manipulate the linear and nonlinear optical performances. Third, functionalize units with polymer to realize reversible structures for dynamic optical modulation. Finally, multi-order OSFU is designed by inducing diverse lattice arrangements for photonic band engineering. The second-order elements are embedded on special points that corresponding high symmetry points in k-space that will arise Dirac cone and flat band.

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