Sanada
Laboratory

Empowering 6G

We empower 6G with innovative THz metamaterial technologies exploiting unusual electromagnetic properties

• Metasurfaces based on stretchable electronics, Nanophotonics (2023)
• Dual-band anomalous reflectors, IEEE Access (2023)
• Perfect anomalous reflectors, IEEE Access (2021)

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Invisibility Cloaks

Paving the way for invisibility cloaking technologies based on the metamaterial concept

• All-dielectric carpet cloaks, Nanophotonics (2022)
• Dual-band coordinate transformation cloaks, Phys. Rev.B (2021)
• Broadband corner cloaks, EPJ Appl. Metamaterials (2020)
• Transmission line cloaks, Trans. Microwave Theory Tech. (2015)

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Transformation Electromagnetics

Enabling full control rays of light with coordinate transformation

• Bi-fold transformation media, Trans. Microwave Theory Tech. (2021)
• Transformation illusion, EPJ Appl. Metamaterials (2019)
• Coordinate transformation resonators, Appl. Phys. Lett. (2018)

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Topological Photonics

• Bulk-edge correspondences for surface plasmon polaritons, Phys. Rev. B (2023)
• Hidden symmetry protection for surface plasmon polaritons, Phys. Rev. Research (2023)
• Topological boundary modes, Phys. Rev. Lett. (2020)

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Hidden Symmetry Protection

• Hidden symmetry protection for surface plasmon polaritons, Phys. Rev. Research (2023)

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Dynamic Metamaterials

• Dynamic quarter-wave metasurface, Advanced Optical Materials (2023)

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Beltrami Electromagnetic Field

Exploring exotic Beltrami electromagnetic field having parallel electric and magnetic fields with zero Poyinting vector

• Quarter-wave Beltrami cavity resonators, AIP Advances (2023)
• Beltrami cavity resonators, AIP Advances (2022)

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Composite Right/Left-Handed Concept

Advancing the composite right/left-handed metamaterial concept

• CRLH transmission line concept, Microwave & Wireless Comp. Lett. (2004)
• Distributed CRLH metamaterials, Trans. Microwave Theory Tech. (2004)
• CRLH directional coupler, Trans. Microwave Theory Tech. (2004)

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Photonic Dirac Cone

Artificially designing the photonic Dirac cone

• Dirac cone perfect absorber, Microwave & Wireless Comp. Lett. (2020)
• Extraordinary transmission, Trans. Microwave Theory Tech. (2019)
• Γ-point group velocity of lossy Dirac cone composite right/left-handed metamaterials, ELEX (2016)
• Zeroeth-order resonator, US Patent (2005)
• Planar distributed NRI metamaterials, Trans. Microwave Theory Tech. (2004)

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Subwavelength Focusing

Subwavelength focusing by evanescent wave generation and manipulation

• Evanescent field manipulation, Trans. Microwave Theory Tech. (2020)

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Near-Zero Index Material

Exploiting in-phase infinite-wavelength properties in near-zero index materials

• Near-Zero-Index cloak, Trans. Microwave Theory Tech. (2018)

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