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General Physics Nov 23, 2024

Extending classical black hole inequalities into the quantum realm

A recent study in Physical Review Letters explores quantum effects on black hole thermodynamics and geometry, focusing on extending two classical inequalities into the quantum regime.

Optics & Photonics Nov 20, 2024

Ultra-compact optical design enhances virtual and augmented reality device cameras

Researchers from Seoul National University College of Engineering announced they have developed an optical design technology that dramatically reduces the volume of cameras with a folded lens system utilizing "metasurfaces," ...

Optics & Photonics Oct 25, 2024

Optical technique that uses orbital angular momentum could transform medical diagnostics

An Aston University researcher has developed a new technique using light that could revolutionize non-invasive medical diagnostics and optical communication. The research showcases how a type of light called the orbital angular ...

Optics & Photonics Aug 5, 2024

Optimization for inverse problem solving in computer-generated holography

Computer-generated holography (CGH) provides an approach to digitally modulate a given wavefront. This technology, partly inherited from optical holography and partly advanced by the progress of computing technology, has ...

Optics & Photonics Apr 23, 2024

Tailoring electron vortex beams with customizable intensity patterns by electron diffraction holography

A new research study from Opto-Electronic Advances discusses tailoring electron vortex beams with customizable intensity patterns by electron diffraction holography.

Optics & Photonics Apr 8, 2024

Advancing real-time 3D holographic display: A new method for computer-generated holography

Holographic displays offer a promising avenue for achieving lifelike 3D reproductions with continuous depth sensation, holding potential applications in fields such as entertainment, medical imaging, and virtual reality. ...

General Physics Jun 22, 2023

Could quantum gravity models arising from holography explain cosmological acceleration?

Theoretical physicists have long been trying to devise a complete theory of gravity that would also account for quantum mechanics phenomena, as existing models do not. Such a theory could collectively explain the many intricate ...

Optics & Photonics Apr 13, 2023

New light sheet holography overcomes the depth perception challenge in 3D holograms

Holography—the use of light projection to display images—can be used to construct holograms, which are three-dimensional structures of light that depict true-to-life objects and scenes. While today's technologies can't ...

Optics & Photonics Dec 15, 2022

Visualization of the deforming atomic wavefunction with attosecond time-resolved photoelectron holography

Revealing the impulsive response of the bound electron to an electromagnetic field is of fundamentally importance for understanding various nonlinear processes of matter, and it is one of the ultimate goals of attosecond ...

General Physics Nov 30, 2021

High-speed holography of cells spots physical beacons of disease

Biomedical engineers at Duke University have engineered a holographic system capable of imaging and analyzing tens of thousands of cells per minute to both discover and recognize signs of disease.

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