Sony Group Corporation

Eri Igarashi

Atsushi Yamada

Takahiro Ohe

Takashi Kawamura

Kenshiro Kawasaki

Hisaya Hara

Nobuhiko Umezu

Daisuke Hobara

To provide a wave control medium that can absorb and control wave motion while achieving downsizing and wider bandwidth of a metamaterial and the like. A wave control mediumincludes a three-dimensional microstructure having a base, a spiral part, and a matching elementdisposed between the baseand the spiral part, in which the three-dimensional microstructure includes a material selected from any one of a metal, a dielectric, a magnetic body, a semiconductor, and a superconductor, or a combination of a plurality of these materials. The wave control mediumcan absorb the wave motion by having the matching elementdisposed between the baseand the spiral partto moderate a change in the entire impedance value.

Wave control medium, wave control element, wave control member, wave control device, and manufacturing method of wave control medium

Provided is a wave control medium capable of controlling waves while decreasing the size of a metamaterial or the like and increasing the bandwidth of the metamaterial or the like. A wave control mediumis formed by combining at least two among a coiland a coilwhich are three-dimensional microstructures formed into a spiral structure, the coiland the coilincluding any one of a metal, a dielectric material, a magnetic material, a semiconductor, and a superconductor, or a material selected from a plurality of combinations of these materials, and having functions of a capacitor and an inductor. The coiland the coilform a capacitor between the lateral face of the coiland the lateral face of the coilfacing each other, and form an inductor by forming a three-dimensional multiple resonance structure by the coiland the coilhaving a spiral structure.

Wave control medium, wave control element, wave control device, and method for manufacturing wave control medium

To provide a hologram recording composition that can further improve diffraction characteristics and transparency of a hologram. The present technology provides a hologram recording composition containing a heteropoly acid, a photopolymerizable monomer, a photopolymerization initiator, and a sensitizing dye having absorption in a visible light region in the presence of an acid. The present technology also provides a hologram recording medium including at least a photocurable resin layer containing a heteropoly acid, a photopolymerizable monomer, a photopolymerization initiator, and a sensitizing dye having absorption in a visible light region in the presence of an acid. Furthermore, the present technology also provides a diffraction optical element using the hologram recording medium. Moreover, the present technology also provides an optical device, an optical component, and an image display device using the diffraction optical element.

Hologram recording composition, hologram recording medium, diffraction optical element, and optical device, optical component, and image display device using diffraction optical element

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Tokyo, Japan

Eri Igarashi