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Thinnest Optical Waveguide Channels Light Within Just Three Layers of Atoms

August 12, 2019

Engineers at the University of California San Diego have developed the thinnest optical device in the world—a waveguide…
Stanford researchers design a light-trapping, color-converting crystal

August 8, 2019

Five years ago, Stanford postdoctoral scholar Momchil Minkov encountered a puzzle that he was impatient to solve. At the heart…
Image credit: ITMO University / Wiley-VCH
Physicists found new way to optimize nanoparticles and light interaction

May 19, 2019

Scientists first described the new features of dielectric nanoparticles’ optical response using improved method for electromagnetic field analysis…
By shaping its spatial wavefront, a laser beam can propagate through a strongly scattering medium without lateral diffusion. Moreover, the backscattering of light is suppressed. The enhancement of light transmittance and the suppression of lateral beam spreading keep the optical energy density high throughout the scattering medium.
New shapes of laser beam ‘sneak’ through opaque media

March 6, 2019

Researchers have found a way to pre-treat a laser beam so that it enters opaque surfaces without dispersing…
New phenomenon discovered that fixes a common problem in lasers: wavelength splitting

February 13, 2019

A team led by University of Utah physicists has discovered how to fix a major problem that occurs…
Scientists use magnetic defects to achieve electromagnetic wave breakthrough

December 20, 2018

Surfers spend much of their time watching long waves come onto the shoreline as they attempt to catch…
Superconducting Metamaterial Traps Quantum Light

September 29, 2018

Conventional computers store information in a bit, a fundamental unit of logic that can take a value of…
Study sheds light on – and through – 2D materials

September 26, 2018

High-performance computing helps to survey optical qualities of atom-thick materials for optoelectronics The ability of metallic or semiconducting…
‘Optical rocket’ created with intense laser light

September 18, 2018

Physics professor Donald Umstadter, who led the research, said the new application might aptly be called an “optical…
Fish-eye lens may entangle pairs of atoms

September 6, 2018

Nearly 150 years ago, the physicist James Maxwell proposed that a circular lens that is thickest at its…
Bowtie-funnel combo best for conducting light; team found answer in undergrad physics equation

September 4, 2018

Running computers on virtually invisible beams of light rather than microelectronics would make them faster, lighter and more…
Light from ancient quasars helps confirm quantum entanglement

August 22, 2018

Last year, physicists at MIT, the University of Vienna, and elsewhere provided strong support for quantum entanglement, the…
Scientists find holes in light by tying it in knots

August 2, 2018

Laser light may appear to be a single, tightly focused beam. In fact, it’s an electromagnetic field, vibrating…
On-chip optical filter processes wide range of light wavelengths

August 1, 2018

MIT researchers have designed an optical filter on a chip that can process optical signals from across an…
Kirigami-inspired technique manipulates light at the nanoscale

July 11, 2018

Nanokirigami has taken off as a field of research in the last few years; the approach is based…
Squeezing light at the nanoscale

June 25, 2018

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new technique to…
Modern Laser Science Brightened by 2,300-Year-Old Technology

June 22, 2018

An active field of research, laser optical trapping works to control the movement and position of particles of…
Capturing light in a waveguide array

June 13, 2018

Cheaper and more efficient photonic devices, such as lasers, optical fibers, and other light sources, may be possible…
Bringing a Hidden Superconducting State to Light

February 20, 2018

High-power light reveals the existence of superconductivity associated with charge “stripes” in the copper-oxygen planes of a layered…
Intense laser experiments provide first evidence that light can stop electrons

February 19, 2018

Whenever light hits an object, some of the light scatters back from the surface of the object. However,…
Building Blocks to Create Metamaterials

January 22, 2018

Their work could pave the way for wider use of metamaterials in more mainstream applications by creating a…
Scientists write ‘traps’ for light with tiny ink droplets

October 24, 2017

A microscopic ‘pen’ that is able to write structures small enough to trap and harness light using a…
‘Lossless’ Metamaterial Could Boost Efficiency of Lasers and Other Light-based Devices

February 18, 2017

Engineers at the University of California San Diego have developed a material that could reduce signal losses in…
Optical fibre with Einstein effect

February 14, 2017

Researchers at the Max Planck Institute for the Science of Light in Erlangen have discovered a new mechanism…
Physicists Discover “Smoke Rings” Made of Laser Light

September 14, 2016

Most basic physics textbooks describe laser light in fairly simple terms: a beam travels directly from one point…
Silicon nanoparticles trained to juggle light

August 26, 2016

A team of physicists from ITMO University (Saint Petersburg) and Moscow Institute of Physics and Technology (MIPT) has demonstrated the…
Control the flow of light: Nature-inspired nanostructure created

October 5, 2015

The catenary is the curve that a free-hanging chain assumes under its own weight. It is a “true…
Mechanism of air lasing

September 29, 2015

University of Tokyo researchers have discovered the mechanism of “air lasing.” Irradiating air with a short laser pulse…
How to spawn an “exceptional ring”

September 15, 2015

Researchers create exotic states that could lead to new kinds of sensors and optical devices. The Dirac cone,…
Researchers test speed of light with greater precision than before

September 14, 2015

Researchers from The University of Western Australia and Humboldt University of Berlin have completed testing that has effectively…
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