Search results for photonic crystal

Condensed Matter Jun 10, 2024

The impact of carbon impurities on the quality of gallium nitride crystals

The wide availability of light-emitting devices (LEDs) for consumer use has led to a dramatic decrease in the cost of lighting our homes and other buildings. This is owing to the much higher efficiency of LEDs in converting ...

Nanomaterials Jun 6, 2024

Researchers' crystal engineering modifies 2D metal halide perovskites into 1D nanowires

Purdue University engineers have developed a patent-pending method to synthesize high-quality, layered perovskite nanowires with large aspect ratios and tunable organic-inorganic chemical compositions.

Condensed Matter Jun 3, 2024

Scientists bring crystal clarity to diamond's quantum signals

They say that one can miss the forest for the trees. But it's often worth taking a closer look at the trees to make sense of the dense, brambly whole. That's what a Stanford University group did to tackle a thorny quantum-information ...

Analytical Chemistry Jun 3, 2024

Scientists develop 'X-ray vision' technique to see inside crystals

A team of New York University researchers has created a new way to visualize crystals by peering inside their structures, akin to having X-ray vision. Their new technique—which they aptly named "Crystal Clear"—combines ...

General Physics May 31, 2024

New photonic crystal approach can enable sensitive and affordable detection of biomarkers

Biomarkers are small molecules of interest to researchers, because they can indicate underlying diseases, often even before symptoms even appear. However, detecting these markers can be challenging as they are often present ...

Condensed Matter May 31, 2024

On-chip GHz time crystals with semiconductor photonic devices pave way to new physics and optoelectronic applications

Researchers have for the first time observed a time crystal on a microscale semiconductor chip oscillating at a rate of several billion times per second, unveiling exceptionally high non-linear dynamics in the GHz range.

Plants & Animals May 29, 2024

How did the zebrafish get its stripes? Researchers are one step closer to finding out

Although zebrafish are much smaller and less famous than their terrestrial namesakes, the tiny fish possess a unique ability: They can rapidly change the color of their characteristic stripes from blue to yellow when they're ...

Nanophysics May 29, 2024

New device precisely controls photon emission for more efficient portable screens

Recently, a team of chemists, mathematicians, physicists and nano-engineers at the University of Twente in the Netherlands developed a device to control the emission of photons with unprecedented precision. This technology ...

Optics & Photonics May 28, 2024

Researchers create the world's strongest ionizing terahertz radiation

Terahertz waves, known as non-ionizing radiation, can turn into ionization radiation when sufficiently many terahertz photons are focused in space and time. A team led by scientists in Korea and the U.S. has created the world's ...

Optics & Photonics May 27, 2024

Researchers create dispersion-assisted photodetector to decipher high-dimensional light

A new study published in Nature, conducted by an international collaboration team led by Prof. Wei Li from the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) of the Chinese Academy of Sciences, introduces ...

page 2 from 40