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Nanophysics Oct 13, 2022

Scientists count electric charges in a single catalyst nanoparticle down to the electron

If you often find yourself off by one when counting your socks after doing the laundry, you might want to sit down for this.

Quantum Physics Aug 10, 2022

Higgs10: Inventing the future of Higgs research

In 1975, three CERN theorists, John Ellis, Mary K. Gaillard and Dimitri Nanopoulos, undertook the first comprehensive study of the collider phenomenology of the Higgs boson. Almost 40 years later, it was discovered at the ...

Optics & Photonics Aug 4, 2022

New chip-based beam steering device lays groundwork for smaller, cheaper lidar

Researchers have developed a new chip-based beam steering technology that provides a promising route to small, cost-effective and high-performance lidar (or light detection and ranging) systems. Lidar, which uses laser pulses ...

Materials Science Aug 1, 2022

Engineers repurpose 19th-century photography technique to make stretchy, color-changing films

Imagine stretching a piece of film to reveal a hidden message. Or checking an arm band's color to gauge muscle mass. Or sporting a swimsuit that changes hue as you do laps. Such chameleon-like, color-shifting materials could ...

Optics & Photonics Jul 25, 2022

Present and future of nonlinear optical metasurfaces

One of the main objectives of optics is the control of light propagation and confinement. Progress in optics historically started with the development of bulky lenses and mirrors, then prisms and gratings, and so on. The ...

General Physics Jul 20, 2022

Using holograms to illuminate de Sitter space

Our understanding of the universe may not be expanding as much as the universe itself. In some cases, our theories about cosmic inflation may feel as if they are deflating into a black hole.

General Physics Jun 20, 2022

Keeping objects levitated by sound airborne despite interference

A team of researchers at University College London has developed a way to keep objects levitated by sound waves airborne when other objects interfere with the levitation path. In their paper published in the journal Science ...

Optics & Photonics Jun 17, 2022

How holographic interferometry could influence the future

Holographic interferometry is the technique of measuring stress, strain, and vibration with light. It is defined by the wavelength of light, finding flaws in structural bonds. It makes full use of a hologram's ability to ...

Nanomaterials May 5, 2022

Dynamic metasurfaces and metadevices empowered by graphene

A new publication in Opto-Electronic Advances overviews dynamic metasurfaces and metadevices empowered by graphene.

Nanophysics Apr 22, 2022

Nanoclusters self-organize into centimeter-scale hierarchical assemblies

Nature may abhor a vacuum, but it sure loves structure. Complex, self-organized assemblies are found throughout the natural world, from double-helix DNA molecules to the photonic crystals that make butterfly wings so colorful ...

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