Gyroid Optical Metamaterials

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106,99 

Solvent Vapour Annealing, Confined Crystallisation, and Optical Anisotropy, Springer Theses

ISBN: 3030030105
ISBN 13: 9783030030100
Autor: Dolan, James A
Verlag: Springer Verlag GmbH
Umfang: xxii, 132 S., 4 s/w Illustr., 40 farbige Illustr., 132 p. 44 illus., 40 illus. in color.
Erscheinungsdatum: 13.11.2018
Auflage: 1/2019
Produktform: Gebunden/Hardback
Einband: Gebunden

This thesis explores the fabrication of gyroid-forming block copolymer templates and the optical properties of the resulting gyroid optical metamaterials, significantly contributing to our understanding of both. It demonstrates solvent vapour annealing to improve the long-range order of the templates, and investigates the unique crystallisation behaviour of their semicrystalline block. Furthermore, it shows that gyroid optical metamaterials that exhibit only short-range order are optically equivalent to nanoporous gold, and that the anomalous linear dichroism of gyroid optical metamaterials with long-range order is the result of the surface termination of the bulk gyroid morphology. Optical metamaterials are artificially engineered materials that, by virtue of their structure rather than their chemistry, may exhibit various optical properties not otherwise encountered in nature (e.g. a negative refractive index). However, these structures must be significantly smaller than the wavelength of visible light and are therefore challenging to fabricate using traditional „top down“ techniques. Instead, a „bottom up“ approach can be used, whereby optical metamaterials are fabricated via templates created by the self-assembly of block-copolymers. One such morphology is the gyroid, a chiral, continuous and triply periodic cubic network found in a range of natural and synthetic self-assembled systems.

Artikelnummer: 5615691 Kategorie:

Beschreibung

Autorenporträt

James completed his PhD, an interdisciplinary collaboration between the Departments of Engineering and Physics at the University of Cambridge, as part of the Nano Doctoral Training Centre (NanoDTC). Prior to this, he graduated with an MEng in Engineering Science from the University of Oxford, where he specialised in electrical, electronic and control engineering. James is a PhD student at the Nano Science and Technology Doctoral Training Centre. His research, an interdisciplinary collaboration between three groups in the Department of Engineering and the Cavendish Laboratory, concerns the investigation and application of novel photonic and optoelectronic nanomaterials. Prior to studies at Cambridge, James graduated with an MEng in Engineering Science from the University of Oxford, where he specialised in electrical, electronic and control engineering.

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E-Mail: juergen.hartmann@springer.com

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