Science Daily

Logic with light: Introducing diffraction casting, optical-based parallel computing

Increasingly complex applications such as artificial intelligence require ever more powerful and power-hungry computers to run. Optical computing is a proposed solution to increase speed and power ...

Scientists create optical skyrmions using a two-century-old light phenomenon

Nanyang Technological University, Singapore (NTU Singapore) scientists have used a classic optical phenomenon known as the ...
Nanowerk

Creating complex light patterns using a two-century-old light phenomenon

Researchers used the Poisson spot effect to create stable optical skyrmions with a laser and disc, simplifying studies for ...
Nature

Diffraction minima resolve point scatterers at few hundredths of the wavelength

Resolving two or more constantly scattering identical point sources using freely propagating waves is limited by diffraction. Here we show that, by illuminating with a diffraction minimum, a given ...
Nature

Dispersion-engineered metasurfaces reaching broadband 90% relative diffraction efficiency

Dispersion results from the variation of index of refraction as well as electric field confinement in sub-wavelength structures. It usually results in efficiency decrease in metasurface components ...
Nanowerk

First observation of positronium matter-wave diffraction with a graphene grating

First experimental observation of matter-wave diffraction in a short-lived electron-positron atom using a graphene-based diffraction grating. (Nanowerk News) One of the discoveries that fundamentally ...
Morning Overview on MSN

Wi-Fi, radio and visible light are all the same thing: electromagnetic waves

Every Wi-Fi router, FM radio station, and reading lamp relies on the same physical phenomenon: electromagnetic waves ...
EurekAlert!

Observing positronium beam as a quantum matter wave for the first time

Using a highly coherent positronium beam, the researchers observed clear diffraction patterns after transmission through a graphene film, confirming its wave-like behavior. One of the discoveries that ...
technologynetworks

Using a Single Atom as a “Camera” Could Push Boundaries of Microscopy

A research group led by Assistant Professor Takafumi Tomita and Professor Kenji Ohmori at the Institute for Molecular Science, National Institutes of Natural Sciences, has developed a new microscopy ...
Phys.org

Using a non-destructive, light diffraction fingerprint technique to detect viral infections in cells

A combined team of engineers from Jiangsu University and Harvard University used a non-destructive, light diffraction fingerprint technique to detect viral infections in cells. Their paper is ...
GEN

Novel Lensless Light Diffraction Method Detects Viral Infection

Researchers at Harvard University and Jiangsu University developed a technique for not only identifying infected cells, but also tracking the infection over time as the cells developed. They published ...
Phys.org

Researchers compress light 12 times below the diffraction limit in a dielectric material

Until recently, it was widely believed among physicists that it was impossible to compress light below the so-called diffraction limit (see below), except when using metal nanoparticles, which ...