Opto-Electronic Advances, Volume. 1, Issue 5, 180009-1(2018)
Tunable and reconfigurable metasurfaces and metadevices
Fig. 1. Schematic art view of the different mechanisms in tunable metasurfaces.
Fig. 2. The metal-oxide-semiconductor heterostructure with ITO as the active material. Figure reproduced from ref.119, American Chemical Society.
Fig. 3. The refractive index (
Fig. 4. The tunability of ITO in a multilayer modulator.
(
Fig. 5. Tunable metasurfaces using ITO as an active layer.
(
Fig. 6. Phase transition in ferroelectric materials.
(
Fig. 7. Thermal tuning of ferroelectric materials in active metamaterials.
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Fig. 8. Electrical tuning of the ferroelectric material in active metamaterials.
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Fig. 9. Tunable metamaterials using graphene as the active material.
(
Fig. 10. Tunable metamaterials using GST as the active material.
(
Fig. 11. Liquid crystal molecules orientation and periodicity in (a) smectic, (b) nematic, and (c) isotropic phases.
Fig. 12. Tunable metamaterials using LCs as the active material.
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Fig. 13. Tunable metamaterials using semiconductors as the active material.
(
Fig. 14. Flexible tunable metamaterials made on elastic substrates.
(
Fig. 15. Reconfigurable metamaterials using M-NEMS. SEM image of (
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Arash Nemati, Qian Wang, Minghui Hong, Jinghua Teng. Tunable and reconfigurable metasurfaces and metadevices[J]. Opto-Electronic Advances, 2018, 1(5): 180009-1
Received: May. 14, 2018
Accepted: Jun. 21, 2018
Published Online: Mar. 19, 2019
The Author Email: Teng Jinghua (jh-teng@imre.a-star.edu.sg)