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Tag: nanoscience

Bringing Atomic Mapping to the Mainstream

Image - This image shows the atomic composition of an iron-platinum nanoparticle. (Credit: Colin Ophus and Florian Niekiel/Berkeley Lab)

Scientists Print Nanoscale Imaging Probe onto Tip of Optical Fiber

Berkeley Lab Scientists Discover New Atomically Layered, Thin Magnet

Scientists Determine Precise 3-D Location and Identity of All 23,000 Atoms in a Nanoparticle

For This Metal, Electricity Flows, But Not the Heat

Three people standing around an electron spectroscopy instrument

Chemistry on the Edge: Study Pinpoints Most Active Areas of Reactions on Nanoscale Particles

Illustration - This illustration shows the setup for an experiment at Berkeley Lab’s Advanced Light Source that used infrared light (shown in red) and an atomic force microscope (middle and top) to study the local surface chemistry on coated platinum particles (yellow) measuring about 100 nanometers in length. (Credit: Hebrew University of Jerusalem)

New Graphene-Based System Could Help Us ‘See’ Electrical Signaling in Heart and Nerve Cells

Image - This diagram shows the setup for an imaging method that mapped electrical signals using a sheet of graphene and an infrared laser. The laser was fired through a prism (lower left) onto a sheet of graphene. An electrode was used to send tiny electrical signals into a liquid solution (in cylinder atop the graphene), and a camera (lower right) was used to capture images mapping out these electrical signals. (Credit: Halleh Balch and Jason Horng/Berkeley Lab and UC Berkeley)

Scientists Take a Major Leap Toward a ‘Perfect’ Quantum Metamaterial

Illustration - The wavelike pattern at the top shows the accordion-like structure of a proposed quantum material—an artificial crystal made of light—that can trap atoms in regularly spaced nanoscale pockets. These pockets can be made to hold a large collection of ultracold “host” atoms (green), slowed to a standstill by laser light, and individually planted “probe” atoms (red) that can be made to transmit quantum information in the form of a photon (particle of light). The lower panel shows how the artificial crystal can be reconfigured with light from an open (hyperbolic) geometry to a closed (elliptical) geometry, which greatly affects the speed at which the probe atom can release a photon. (Credit: Pankaj K. Jha/UC Berkeley)

Revealing the Fluctuations of Flexible DNA in 3-D

Illustration: In a Berkeley Lab-led study, flexible double-helix DNA segments connected to gold nanoparticles are revealed from the 3-D density maps (purple and yellow) reconstructed from individual samples using a Berkeley Lab-developed technique called individual-particle electron tomography or IPET. Projections of the structures are shown in the background grid. (Credit: Berkeley Lab)

New Form of Electron-beam Imaging Can See Elements that are ‘Invisible’ to Common Methods

A New Spin on Quantum Computing: Scientists Train Electrons with Microwaves

Photo: Researchers at Berkeley Lab's NCDX-II accelerator.

‘Lasers Rewired’: Scientists Find a New Way to Make Nanowire Lasers

Image showing a nanolaser emitting bright light.