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Lawrence Berkeley National Laboratory News
Petawatt Laser Achieves Record Power
BERKELEY, Calif., Aug. 1, 2012 — The Berkeley Lab Laser Accelerator (BELLA) laser system has generated a record petawatt of power in a pulse just 40 fs long at a pulse rate of 1 Hz — one pulse every second.
PVs Enabled from Any Semiconductor
BERKELEY, Calif., July 31, 2012 — A technology that improves the photovoltaic qualities of virtually any semiconductor could lead to the use of plentiful, relatively inexpensive materials that once were considered unsuitable for solar cells because their properties were so difficult...
Metamolecules Change Chirality Under Light
BERKELEY, Calif., July 11, 2012 — For the first time, the chirality of artificial molecules has been switched from a right-handed to a left-handed orientation using a light beam. The discovery holds potential for a range of terahertz technology applications, including biomedical...
3-D Optical Cavities Made from Metamaterials
BERKELEY, Calif., June 27, 2012 — Three-dimensional nanoscale optical cavities made from metamaterials have the potential to generate the most intense nanolaser beams to date and hold promise for a range of other technologies, including LEDs, optical sensing, nonlinear optics,...
Laser ARPES Helps Explain Superconductivity
BERKELEY, Calif., June 4, 2012 — A new ultrafast laser angle-resolved photoemission spectroscopy (ARPES) technique may soon help scientists realize some of the biggest obstacles to the electronic states of high-temperatures superconductors so that they may one day put these...
Consortium Grants $7M to Lower Cost of Large-Scale Solar
STANFORD, Calif., May 21, 2012 — The Bay Area Photovoltaic Consortium, an industry-supported program led by Stanford University and the University of California, Berkeley, received its first research grants aimed at making utility-scale solar power cost-competitive by the end of...
Alexander Graham Bell, we can hear you now
May 1, 2012 — Linguists, historians and even musicians could benefit from noninvasive optical scanning technology that enables us to hear voices and sounds that were recorded more than a century ago. Unlocking these sounds is part of a collaborative sound...
New Tool Images Biomolecules
BERKELEY, Calif., March 28, 2012 — For the first time, optical nanoantennas can harness the power of plasmonics to study the dynamics of cell membrane biology. A unique artificial biological platform combines a fluid bilayer of lipid molecules with a fixed pattern of nanoantennas to...
2-million-degree matter reveals the structure of stars
MENLO PARK, Calif. – Using the world’s most powerful x-ray laser, scientists have created and probed a 2-million-degree piece of “hot, dense matter” in a controlled way for the first time. This is a significant step forward in understanding the most...
Ultrafast Fiber Lasers Enable Unique Materials Research
Mar 1, 2012 — Although ultrafast fiber laser technology is perhaps the catalyst that will finally allow the nascent industrial ultrafast laser market to reach its full potential, researchers also are embracing this technology for cutting-edge science. The growth...
Linac Creates 2-Million-Degree Matter
MENLO PARK, Calif., Jan. 25, 2012 — A 2-million-degree piece of “hot, dense matter” was created and probed in a controlled way for the first time using the SLAC's Linac Coherent Light Source. This feat takes scientists a significant step forward in understanding the most extreme...
Nanophotonic Endoscope Gently Probes Single Cells
BERKELEY, Calif., Dec. 21, 2011 — A newly developed nanophotonic endoscope can take high-resolution images of the inside of a single living cell and deliver therapeutic drugs and other cargo without injuring or damaging the cell. Fluorescence confocal image of a single living...
New EUV Microscope to Lead to Next-Gen Semiconductors
BERKELEY, Calif., Nov. 2, 2011 — Delving into the extreme ultraviolet wavelengths further than ever, a novel microscope is set to provide leaps forward in photolithography technology. The device, dubbed SHARP (for “Semiconductor High-NA Actinic Reticle Review Project”),...
BMW Headlights to Get Lasers
Nov 1, 2011 — BMW will incorporate lasers into its headlights for the first time, using its new concept vehicle, the i8, to demonstrate. The lasers, which are 1000 times more intense than conventional LEDs, are safe and could result in significant fuel savings....
Tunable graphene device puts terahertz to work
BERKELEY, Calif. – A microscale graphene device that responds strongly to terahertz light and that can be precisely tuned is the first tool in a kit for putting terahertz light to work. At the heart of the device, developed by scientists at Lawrence Berkeley...
Expanding Universe Work Earns Trio a Physics Nobel
STOCKHOLM, Oct. 5, 2011 — Competing American astronomers who studied dozens of distant exploding stars, and in the process discovered that the universe is expanding at an ever-accelerating rate, will share the $1.5 million Nobel Prize in Physics for 2011, the Royal Swedish...
Structural transformations observed in single nanocrystals
BERKELEY, Calif. – For the first time, scientists have observed a single copper sulfide (Cu2S) nanocrystal, an important semiconductor expected to play a big role in future energy technologies as it undergoes structural transformation. The work could lead to the...
Ferroelectrics Could Boost Solar Cell Voltages
BERKELEY, Calif., Sept. 27, 2011 — Some ferroelectric materials can develop extremely high voltages when exposed to light, which could improve solar cells, but scientists haven’t been able to figure out how the process works. Now, researchers at the US Department of Energy's...
BMW to Replace LED Headlights with Lasers
MUNICH, Sept. 14, 2011 — BMW made headlines last week when it announced that it would incorporate lasers into its headlights for the first time, starting with its new plug-in hybrid, the i8 Concept. The lasers, which are 1000 times more intense than conventional LEDs, are...
Hard X-ray Technique Sees Below the Surface
BERKELEY, Calif., Aug. 31, 2011 — A new technique called HARPES (Hard x-ray Angle-resolved PhotoEmission Spectroscopy) can study electronic structures deep below the material surface, including buried layers and interfaces in nanoscale devices. Developed by Lawrence Berkeley...
Tunable, High-Quality E-beams for Tabletop Accelerators
BERKELEY, Calif., Aug. 23, 2011 — A simple way to tune highly stable electron beams through a wide range of energies for tabletop accelerators has been discovered by researchers in the LOASIS program at the US Department of Energy’s Lawrence Berkeley National Laboratory. The...
Throwing Light a Curve in Real Time
BERKELEY, Calif., Aug. 16, 2011 — A new technique that dynamically controls plasmonic Airy beams over metallic surfaces is paving the way for fast, ultracompact communication systems and optoelectronic devices. When Airy beams — which travel without diffraction in a...
Gold nanoantenna enhances plasmonic sensing
BERKELEY, Calif. – The first reported experimental demonstration of antenna-enhanced gas sensing at the single-particle level holds great promise for plasmonic sensing. By placing a palladium nanoparticle on the focusing tip of a gold nanoantenna, researchers with...
Nanoscale waveguides created for next-gen communication
BERKELEY, Calif. – The first true hybrid plasmon polariton nanoscale waveguides for next-generation on-chip optical communications systems have been demonstrated, which could hold great potential for nanophotonics, including intrachip optical communications, signal...
Plasmonic resonances found in quantum dots
BERKELEY, Calif. – Until recently, plasmonic properties have been limited to nanostructures with interfaces between noble metals and dielectrics. But now researchers have discovered that plasmonic properties also can be achieved in quantum dots. Scientists at the...
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May 2024
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