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Optics & Photonics Apr 1, 2024

Team demonstrates an ultra-broadband tunable terahertz absorber of graphene and hierarchical plasmonic metamaterials

Perfect absorption arises from the strong interaction of valence electrons with light in a conducting material. Optical metamaterial is an effective approach to exploit the superior photon capture capability. Thus, the perfect ...

Optics & Photonics Apr 1, 2024

Researchers observe anomalously bright single-molecule upconversion electroluminescence phenomenon

A research group has developed a new and highly efficient upconversion luminescence mechanism by scanning tunneling microscopy (STM) induced luminescence to observe an extraordinarily bright single-molecule upconversion electroluminescence ...

Nanomaterials Apr 1, 2024

Acids enable adhesive electrodes for thin, flexible supercapacitors

Supercapacitors have the superb ability to capture and store energy. Researchers can use different materials and fabrication methods to make them flexible, thin and appropriate for use in wearable or implantable electronics, ...

Bio & Medicine Apr 1, 2024

The role of interfacial amino acids in shaping bio-electronic communication between proteins

Proteins are vital for facilitating charge transport (CT) chain reactions, both within individual proteins and between proteins. Understanding CT in proteins is crucial for biological processes and the development of bioelectronic ...

Condensed Matter Mar 29, 2024

'Shear sound waves' provide the magic for linking ultrasound and magnetic waves

A team led by researchers from the RIKEN Center for Emergent Matter Science in Japan has succeeded in creating a strong coupling between two forms of waves—magnons and phonons—in a thin film. Importantly, they achieved ...

Condensed Matter Mar 28, 2024

Magnetic avalanche triggered by quantum effects: 'Barkhausen noise' detected for first time

Iron screws and other so-called ferromagnetic materials are made up of atoms with electrons that act like little magnets. Normally, the orientations of the magnets are aligned within one region of the material but are not ...

Optics & Photonics Mar 28, 2024

An on-chip photon-counting reconstructive spectrometer with tailored cascaded detector array

Superconducting nanowire single-photon detectors (SNSPDs) have been widely used in various applications requiring single photon detection thanks to their attractive performances. Since SNSPDs are thin films of serval nanometers ...

Condensed Matter Mar 28, 2024

From Earth to Mars: Transporting spin information at the speed of light

Scientists have used electrical pulses to manipulate magnetic information into a polarized light signal, a discovery that could revolutionize long-distance optical telecommunications, including between Earth and Mars.

Analytical Chemistry Mar 28, 2024

Team discovers fundamentally new way to detect radiation involving cheap ceramics

The radiation detectors used today for applications like inspecting cargo ships for smuggled nuclear materials are expensive and cannot operate in harsh environments, among other disadvantages. Now, MIT engineers have demonstrated ...

Nanomaterials Mar 28, 2024

Electronic device thermal management made simpler and slightly better

Dr. Cheol-Woo Ahn, leading a research team at the Department of Functional Ceramics within the Ceramic Materials Division at the Korea Institute of Materials Science (KIMS), has developed the world's first heat dissipation ...

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