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Optical Vacuum Cleaner can Trap Nanoparticles from the Environment

Researchers of Tomsk Polytechnic University (TPU) together with Russian and international colleagues created the concept for building an “optical vacuum cleaner.”

11 Sep 2019

Asymmetric Dielectric Environment Favored by Narrow Plasmonic Surface Lattice Resonances

Plasmonic nanostructures have been extensively used for improving light-matter interactions because of the strong local field enhancement in deep subwavelength volumes.

5 Sep 2019

Engineers Develop World’s Thinnest Optical Resonator for Visible Light

A waveguide with a thickness of three layers of atoms—which is the world’s thinnest optical device—has been developed by engineers from the University of California San Diego.

13 Aug 2019

Researchers Manipulate Soliton Photonic Waves on a Silicon Chip

A tsunami is capable of holding its wave shape over vast distances across the ocean, preserving its “information” and power far from its origin.

4 Jul 2019

2D Perovskite Could Pave Way for Novel Light-Emitting and Other Devices

Three years ago, scientists gained attention when they reported that a two-dimensional (2D) perovskite – a material with a distinct crystal structure – made up of lead, cesium, and bromine produced an intense green light.

25 Jun 2019

Efficient Cathode Interlayers Composed of Ionene Polymers Enhanced with Pendant Fullerenes

Organic photovoltaics have realized extraordinarily high efficiencies, but discovering ideal combinations of materials for high-performance organic solar cells, which are also economically competitive, still poses a challenge.

28 Mar 2019

New Thin-Film Perfect Light Absorbers Could Be Useful for High-Tech Applications

Scientists have learned that the early method of heating metal to produce vibrant colors forms a nanostructured surface that acts as a perfect light absorber.

21 Feb 2019

LED-Based Approach Could Lead to New Solid-State Cooling Technology for Future Microprocessors

In a recent discovery that contradicts a standard assumption in physics, a research team at the University of Michigan ran a LED (light emitting diode) with reversed electrodes to cool another device that was only nanometers away.

14 Feb 2019

Researchers Get a Step Closer to Developing Nanoscale Lasers with Preset Properties and Guaranteed Coherence

Recently, nanolasers have evolved as a new category of light sources with a size of just a few millionths of a meter and with special properties strikingly different compared to those of macroscopic lasers.

7 Feb 2019

New, Low-Cost Technique Uses Ultraviolet Light to Control Particle Motion and Assembly within Liquids

Chemical sensors, drug delivery, and fluid pumps could now be improved with an innovative, simple, and low-cost technique that utilizes ultraviolet light to regulate the motion and assembly of particles inside liquids.

23 Jan 2019