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Berkeley News
High-Speed Microscopy Tracks Millisecond Voltage Changes in Neurons of Awake Mice
BERKELEY, Calif., March 23, 2020 — University of California, Berkeley, researchers have built a microscope that can image the brain of an alert mouse 1000 times a second and record the passage of millisecond electrical pulses through neurons. The new imaging technique combines two-photon fluorescence microscopy and all-optical laser scanning in a microscope that can image a 2D slice through the neocortex of the mouse brain up to 3000 times per second. According to the researchers, that’s fast enough to trace electrical
Quantum Sensors in Diamond Anvils Measure Materials Under Pressure
BERKELEY, Calif., Jan. 3, 2020 — To develop new, high-performance optical and electronic materials, scientists need to measure how material properties such as magnetism and strength change under extreme conditions. Diamond anvil cells have made it possible for scientists to safely...
Simons Observatory Receives $40M in Funding to Advance Telescopes, Detectors
ANTOFAGASTA REGION, Chile, May 16, 2016 — The Simons Foundation has given $38.4 million to establish a new astronomy facility in Chile's Atacama Desert, adding new telescopes and detectors alongside existing instruments in order to boost ongoing studies of the evolution of the universe,...
DOE Office of Science Selects 49 for Early Career Funding
WASHINGTON, D.C., May 10, 2016 — The Department of Energy's (DOE's) Office of Science has selected 49 scientists from across the nation to receive significant funding for research as part of DOE's Early Career Research Program. DOE said the program, now in its seventh year, is...
Solar Cell Materials Adapted for Nanowire Lasers
BERKELEY, Calif., March 2, 2016 — Next-generation solar cell material have been adapted into 200-nm nanowire lasers that produce bright, stable laser light, which could enable optoelectronic devices. Standard techniques that produce nanowires can require expensive equipment and...
NASA to Launch Wide-Field IR Survey Telescope
WASHINGTON, D.C., Feb. 23, 2016 — NASA’s Agency Program Management Council has announced the decision to move forward with the Wide Field Infrared Survey Telescope (WFIRST), a six-year mission set to launch from Cape Canaveral, Fla., in the mid-2020s. WFIRST is the agency's...
Microprocessor Integrates Silicon Photonics
BERKELEY, Calif., Dec. 23, 2015 — Made from silicon using conventional fabrication methods, a microprocessor that integrates multiple photonic components is said to be the first to communicate directly with other devices using light. The device consists of two processor cores with...
Superacid Erases Thin Film Defects, Boosting Luminescence
BERKELEY, Calif., Nov. 26, 2015 — An organic superacid can smooth out defects in monolayer semiconductors, potentially making them more viable for applications such as transparent LED displays, ultrahigh-efficiency solar cells and photodetectors. The chemical treatment method...
Metamaterial 'Skin Cloak' Makes Microscale Object Invisible
BERKELEY, Calif., Sept. 17, 2015 — An ultrathin metasurface that has been used to hide microscopic objects could be scaled up to provide visible-light cloaking of macroscale objects, according to its developers at the University of California. The researchers fashioned a "skin cloak"...
Light Moves Mirror for 3D Sensing
BERKELEY, Calif., Sept. 3, 2015 — Using a mirror moved by the force of light, a new laser system could enable the miniaturization of 3D sensors for driverless cars and bioimaging. The mirror, an ultrathin high-contrast grating, alters the frequency of the laser beam as it moves,...
Method Lends 'True Color' to Superresolution Microscopy
BERKELEY, Calif., Aug. 17, 2015 — Building on earlier superresolutions methods, a new microscopy technique provides nanoscale spatial information on individual molecules while also revealing their spectra. SR-STORM, or spectrally resolved stochastic optical reconstruction...
IOP Recognizes 4 for Photonics, Optics Research
LONDON, July 8, 2015 — University of Southampton professor Nikolay Zheludev has been awarded the 2015 Young Medal by the Institute of Physics in recognition of his work in optical metamaterials, nanophotonics and global leadership. Zheludev is deputy director of the...
Smartphone Microscope Counts Parasites in Blood
BERKELEY, Calif., May 7, 2015 — A research team led by engineers at the University of California, Berkeley, has developed a new mobile phone microscope capable of analyzing blood. Its ability to automatically detect and quantify bodily infection caused by parasitic worms. The next...
Model Predicts Metamaterials’ Nonlinear Optical Properties
BERKELEY, Calif., Feb. 23, 2015 — A new approach that can predict the nonlinear light scattering properties of nanoscale objects could help turn optical metamaterials to more practical uses. The unique electromagnetic properties of metamaterials stem from their physical structure...
Sunlight Produces Hydrogen via ‘Artificial Leaf’
BERKELEY, Calif., Dec. 31, 2014 — A flat mesh of light-absorbing semiconductor nanowires can split water molecules, producing hydrogen gas that could be used for fuel. The “artificial leaf” was developed by a team led by professor Dr. Peidong Yang of University of...
Vehicle Vision Puts the 'Auto' in 'Automobile'
Sep 4, 2014 — Vision systems are increasingly enabling self-driving cars to automatically park, maintain speed and prevent collisions. Can a world of ubiquitous self-driving cars be far off? Whether it’s a flying, automatically driven car like the...
Photo-Induced Doping Tames Graphene
BERKELEY, Calif, June 6, 2014 — Doping graphene with boron nitride may be a way to tame the material, introducing a bandgap and making it useful in electronic devices. However, controlling the electrical properties of graphene boron nitride (GBN) heterostructures has been tricky....
Laser Sensing for Self-Driving Cars, 3-D Video Games
BERKELEY, Calif., May 30, 2014 — Self-driving cars that could detect nearby objects and people. Answering your smartphone by waving a hand from across the room. 3-D video games that could be played literally anywhere. All of this could be possible with a new 3-D laser imaging...
A Sticky Approach to Fighting Infection
BERKELEY, Calif., March 6, 2014 — A new nanoscale approach to studying a common source of infection could ultimately lead to the creation of bacteria-resistant materials as a line of defense.
New Devices Could Realize Optical Microprocessing
WASHINGTON, Feb. 20, 2014 — The future of computing may lie in photonic devices, specifically microprocessors that use light rather than electric signals.
Light-Controlled Gel Could Benefit Soft Robots
BERKELEY, Calif., June 4, 2013 — Inspired by the way plants grow toward light sources, bioengineers at the University of California, Berkeley, created a hydrogel that flexes in response to near-IR laser light. The achievement could be a step toward adding softness and flexibility...
Graphene Optical Modulators Could Speed Communications
BERKELEY, Calif., May 12, 2011 — Digital communications speed limits could soon be broken, thanks to a new graphene-based optical device that could theoretically reach as high as 500 GHz for a single modulator. Xiang Zhang, an engineering professor at the University of...
Light Scattering Controlled in Graphene
BERKELEY, Calif., March 21, 2011 — Controlling the way light is scattered in graphene has been achieved, providing a new tool for the study of these single sheets of carbon that may lead to practical applications for controlling light and electronic states in nanometer-scale devices...
Atomic Behavior Recorded in Real Time
SAN JOSE, Calif., Sept. 24, 2010 — IBM announced a breakthrough to its 20-year-old scanning tunneling microscope technology on Friday that gives scientists the ability to record, study and visualize the extremely fast spin of electrons inside individual atoms, in real time. Similar...
DNA Helps Chemists Build Artificial Nose
STANFORD, Calif., Aug. 25, 2010 — A new approach to building an artificial nose – using fluorescent compounds and DNA – could accelerate the use of sniffing sensors into the realm of mass production and widespread use, say Stanford University chemists. If their method...
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