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Search News by Ronald Cowen

Displaying 76 - 100 of 101

Making the DNA Melt Curve More Accurate

August 18, 2020

DNA is not only the blueprint of life; it has become the backbone for making tiny structures that can be inserted into the human body to diagnose and treat

Atomic ‘Swiss Army Knife’ Precisely Measures Materials for Quantum Computers

July 6, 2020

It images single atoms. It maps atomic-scale hills and valleys on metal and insulating surfaces. And it records the flow of current across atom-thin materials

cryogenically cooled laser microresonator frequency comb

Comb on a Chip: New Design for ‘Optical Ruler’ Could Revolutionize Clocks, Telescopes, Telecommunications

June 22, 2020

Just as a meter stick with hundreds of tick marks can be used to measure distances with great precision, a device known as a laser frequency comb, with its

NIST Scientists Create New Recipe for Single-Atom Transistors

May 11, 2020

Once unimaginable, transistors consisting only of several-atom clusters or even single atoms promise to become the building blocks of a new generation of

Divide and Conquer: New Algorithm Examines Crime-Scene Bullets Segment by Segment

March 26, 2020

On the morning of March 22, 1915, residents of the small town of West Shelby, New York, awoke to a horrific scene. A woman clad only in a bloodied nightgown lay

Getting a closer look at living cells and batteries: a little bit of graphene goes a long way

March 6, 2020

Researchers at NIST have devised a way to eliminate a long-standing problem affecting our understanding of both living cells and batteries. When a solid and an

STM image of electrons in two coupled quantum dots

What a Pair! Coupled Quantum Dots May Offer a New Way to Store Quantum Information

January 29, 2020

Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have for the first time created and imaged a novel pair of quantum

A New Playbook for Interference

December 17, 2019

Particles can sometimes act like waves, and photons (particles of light) are no exception. Just as waves create an interference pattern, like ripples on a pond

What a Switch! NIST-Led Team Develops Tiny Low-Energy Device to Rapidly Reroute Light in Computer Chips

November 14, 2019

Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have developed an optical switch that routes light from one

A twist and a spin: harnessing two quantum properties transforms a neutron beam into a powerful probe of material structure

October 29, 2019

By cleverly manipulating two properties of a neutron beam, NIST scientists and their collaborators have created a powerful probe of materials that have complex

NIST Goes With the (Slow) Flow: New Technique Could Improve Biotech, Precision Medicine

September 26, 2019

Researchers at the National Institute of Standards and Technology (NIST) have developed an optical system that accurately measures the flow of extraordinarily

A Bubbly New Way to Detect the Magnetic Fields of Nanometer-Scale Particles

June 10, 2019

As if they were bubbles expanding in a just-opened bottle of champagne, tiny circular regions of magnetism can be rapidly enlarged to provide a precise method

Sculpting Super-Fast Light Pulses: NIST Nanopillars Shape Light Precisely for Practical Applications

May 2, 2019

Imagine being able to shape a pulse of light in any conceivable manner—compressing it, stretching it, splitting it in two, changing its intensity or altering

Building a Better Lithium Ion Source to Build a Better FIB

April 22, 2019

Eight years ago, NIST researchers developed a groundbreaking microscope that uses a narrow beam of low-energy lithium ions, rather than a beam of light or

Researchers Explore Energy-saving Catalysts that Operate at Room Temperature

April 15, 2019

NIST researchers have explored in unprecedented detail a new breed of catalysts that allow some chemical reactions, which normally require high heat, to proceed

Entangling Photons of Different Colors

February 25, 2019

Some of the most advanced communication systems now under development rely on the properties of quantum science to store and transport information. However

After 90 Years, a Better Way to Measure the Composition of Paper

February 14, 2019

Researchers at the National Institute of Standards and Technology (NIST), in collaboration with the U.S. Government Publishing Office (GPO), have developed a

Probing surface structure: Three pioneering PML instruments on display

February 12, 2019

Three of the pioneering instruments that unveiled the magnetic and electronic structure of surfaces in exquisite detail are now on display in the atrium of NIST

NIST Study Resolves Fine Details of How Microscopic Machines Can Fail in the Blink of an Eye

November 27, 2018

How long can tiny gears and other microscopic moving parts last before they wear out? What are the warning signs that these components are about to fail, which

New Device Widens Light Beams by 400 Times, Broadening Possibilities in Science and Technology

November 27, 2018

By using light waves instead of electric current to transmit data, photonic chips—circuits for light—have advanced fundamental research in many areas from

Nanofabulous: An intern who mentored interns

October 30, 2018

When NanoFab intern Patricio Flores donned a bunny suit for the first time last January, he had never been inside a cleanroom or worked with the precision tools

Transparent image shaped like wedding cake atop a honeycomb-like lattice with green squiggly lines

A Novel Graphene Quantum Dot Structure Takes the Cake

August 23, 2018

In a marriage of quantum science and solid-state physics, researchers at the National Institute of Standards and Technology (NIST) have used magnetic fields to

The Shape in Water

July 23, 2018

Tinkering with a method they helped develop over the last few years, scientists have for the first time used it to measure at the nanometer scale the

Through a Prism Brightly: A New Way to Measure the Light-Warping Properties of Hyperbolic Metamaterials

June 18, 2018

Manipulating light in a variety of ways—shrinking its wavelength and allowing it to travel freely in one direction while stopping it cold in another--hyperbolic

A New Way to Measure Energy in Microscopic Machines

June 8, 2018

What drives cells to live and engines to move? It all comes down to a quantity that scientists call “free energy,” essentially the energy that can be extracted

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