Journal ArticleDOI
Optical switching of a metamaterial by temperature controlling
TLDR
In this article, a metamaterial of metal/semiconductor/metal sandwich nanostrips structure comprising a pair of gold strips and a vanadium dioxide (VO2) strip has been studied.Abstract:
We have fabricated a metamaterial of metal/semiconductor/metal sandwich nanostrips structure comprising a pair of gold strips and a vanadium dioxide (VO2) strip. The optical response of the metamaterial has been studied. The results indicate the nanostructure with VO2 strips can be used as a temperature-controlling optical switch and the mechanism of this switch can be explained by the magnetic resonance.read more
Citations
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Journal ArticleDOI
From metamaterials to metadevices.
TL;DR: This Review summarizes research on photonic, terahertz and microwave electromagnetic metamaterials and metadevices with functionalities attained through the exploitation of phase-change media, semiconductors, graphene, carbon nanotubes and liquid crystals.
Journal ArticleDOI
Metamaterials: a new frontier of science and technology
TL;DR: A number of intriguing phenomena and applications associated with metamaterials are discussed, including negative refraction, sub-diffraction-limited imaging, strong optical activities in chiral metamMaterials, interaction of meta-atoms and transformation optics.
Journal ArticleDOI
Strain Dynamics of Ultrathin VO2 Film Grown on TiO2 (001) and the Associated Phase Transition Modulation
LL Fan,Shuangming Chen,ZL Luo,Qinghua Liu,Yanfei Wu,Li Song,Dianxiang Ji,Peng Wang,WS Chu,C. Gao,CW Zou,ZY；吴自玉 Wu +11 more
TL;DR: The strain dynamics of ultrathin VO2 film on TiO2 substrate are directly recorded and the intrinsic modulation process is revealed by means of synchrotron radiation and first-principles calculations, showing that the MIT process of the obtained VO2 films can be modulated continuously via the interfacial strain.
Journal ArticleDOI
Hybrid metamaterials for electrically triggered multifunctional control
TL;DR: The proposed hybrid metamaterial integrated with transition materials represents a major step forward by providing a universal approach to creating self-sufficient and highly versatile nanophotonic systems.
Journal ArticleDOI
Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO 2 )
TL;DR: It is shown that an integration of VO2 structures and conventional metallic resonating components can enable a class of highly tunable THz metamaterials, capable of offering ultrafast modulation of THz radiation.
References
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Experimental Verification of a Negative Index of Refraction
TL;DR: These experiments directly confirm the predictions of Maxwell's equations that n is given by the negative square root ofɛ·μ for the frequencies where both the permittivity and the permeability are negative.
Journal ArticleDOI
Controlling Electromagnetic Fields
TL;DR: This work shows how electromagnetic fields can be redirected at will and proposes a design strategy that has relevance to exotic lens design and to the cloaking of objects from electromagnetic fields.
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Sub-Diffraction-Limited Optical Imaging with a Silver Superlens
TL;DR: This work demonstrated sub–diffraction-limited imaging with 60-nanometer half-pitch resolution, or one-sixth of the illumination wavelength, using silver as a natural optical superlens and showed that arbitrary nanostructures can be imaged with good fidelity.
Journal ArticleDOI
Optical negative-index metamaterials
TL;DR: In this paper, a review describes the recent progress made in creating nanostructured metamaterials with a negative index at optical wavelengths, and discusses some of the devices that could result from these new materials.
PatentDOI
Active terahertz metamaterial devices
TL;DR: An active metamaterial device capable of efficient real-time control and manipulation of terahertz radiation is demonstrated, which enables modulation of THz transmission by 50 per cent, an order of magnitude improvement over existing devices.