Photonic metamaterials by direct laser writing and silver chemical vapour deposition
Source abstract
Abstract
Metamaterials are artificial materials that--unlike natural substances--enable magnetism to be achieved at optical frequencies. The vast majority of photonic metamaterials has been fabricated by electron-beam lithography and evaporation of metal films, both of which are well-established two-dimensional (2D) technologies. Although stacking of three or four functional layers made using these methods has been reported, a truly 3D fabrication approach would be preferable for 3D photonic metamaterials. Here, we report first steps in this direction by using a combination of direct laser writing and silver chemical vapour deposition--the 3D analogues of electron-beam lithography and evaporation, respectively. The optical characterization of a planar test structure composed of elongated split-ring resonators is in good agreement with theory. Retrieval of the effective optical parameters reveals the importance of bi-anisotropy. Once suitable theoretical blueprints are available, our fabrication approach will enable rapid prototyping of truly 3D photonic metamaterials.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Photonic Crystals and Applications · Metamaterials and Metasurfaces Applications · Photonic and Optical Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
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