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UCSB News
$3.3M NSF Award Creates Research Partnership
EL PASO, Texas, May 31, 2012 — The National Science Foundation awarded $3.3 million to the University of Texas at El Paso and the University of California, Santa Barbara, to establish a long-term partnership for materials science and engineering research.
Laser Mixing Generates Multifrequency Light
SANTA BARBARA, Calif., March 29, 2012 — A groundbreaking laser mixing technique can manipulate electron-hole collisions to create many frequencies of light simultaneously. This mechanism for ultrafast light modulation has potential applications in high-speed optical communications.
Transparency discovery could benefit LEDs, touch screens
SANTA BARBARA, Calif. – Scientists have uncovered the fundamental limitations of optical transparency in tin dioxide (SnO2), a common conducting oxide. The discovery could lead to more energy efficient photovoltaics, LEDs and LCD touch screens. Transparent conducting...
Transparency Limits on Conducting Oxides Identified
SANTA BARBARA, Calif., Jan. 25, 2012 — Scientists at the University of California, Santa Barbara, have used tin dioxide (SnO2) to uncover the fundamental limitations of optical transparency in conducting oxides. The finding could lead to more energy-efficient photovoltaics, LEDs and LCD...
Nanoscale technique designed for MS diagnosis
SANTA BARBARA, Calif. – A new nanoscopic imaging technique may lead to experimental methods for early detection and diagnosis of – and possible treatments for –pathological tissues that are precursors to multiple sclerosis (MS) and similar diseases. ...
Silicon Emits the Light Fantastic (with Help)
Aug 1, 2011 — Silicon may be mighty in electronics, but it’s puny in photonics – so far. Researchers have resorted to such tricks as combining silicon with other semiconductors or exploiting the Raman effect to coax out coherent light. ...
Droop root identified
SANTA BARBARA, Calif. – Nitride-based LEDs are efficient, nontoxic and long-lasting, but they are considered impractical for general lighting because of a drop in efficiency when operating at high power. And now we know why this happens. Researchers at the University...
It’s high “NOON” for microwave photons
SANTA BARBARA, Calif. – An important milestone toward the realization of a large-scale quantum computer and further demonstration of a new level of the quantum control of light were accomplished by a team of scientists at the University of California, Santa Barbara (UCSB),...
Silicon photonics could save the computer industry
Mar 29, 2010 — The future of computing may need a light touch – literally. As chips move more and more data around, the metallic wiring on and between them eventually won’t be able to keep up. The solution may be silicon photonics, a technology that employs...
Dark Matter Measures Age of Universe
DAVIS, Calif., March 23, 2010 — Astronomers from the United States and Europe have used a gravitational lens – a distant, light-bending clump of dark matter – to make a new estimate of the Hubble constant, which determines the size and age of the universe. The Hubble constant...
Nagarajan Named IET Fellow
Sep 29, 2009 — Dr. Radhakrishnan Nagarajan, senior director of optical component technology at Infinera in Sunnyvale, Calif., has been named a Fellow of the Institute of Engineering and Technology (IET) in recognition of his pioneering work in photonic integrated...
Harmonic Oscillators
SANTA BARBARA, Calif., Aug. 5, 2008 – University of California, Santa Barbara (UCSB) researchers have made a major breakthrough in experimental quantum mechanics. UCSB physicists Max Hofheinz, John Martinis and Andrew Cleland have documented how they used a superconducting electronic...
First Excitonic ICs Built
SAN DIEGO, June 24, 2008 -- Physicists have assembled the first integrated circuits (ICs) that use excitons -- particles that emit a flash of light as they decay -- instead of electrons to ferry signals. These exciton-based transistors could be used in a new kind of computer...
Cree Helps Universities Switch to LEDs
Apr 22, 2008 — Cree Inc. of Durham, N.C., has launched LED University, a program to promote campus LED lighting initiatives. Early participants are North Carolina State University (NCSU), Marquette University, University of California at Santa Barbara, University...
New Class of GaN-Based Laser Diode Created
SANTA BARBARA, Calif., Jan. 30, 2007 -- A research team that included the inventor of the blue laser diode has created the first nonpolar blue-violet laser diodes, which have applications in optical data storage, optical sensing, communications and medicine. The researchers, from the...
ICON Report Finds Nanotech Policies Lacking
HOUSTON, Oct. 19, 2006 -- The nanotechnology industry needs to do a better job of documenting its environmental, health and safety practices regarding potentially hazardous nanomaterials and sharing that information, according to a report released yesterday by the...
Hybrid Silicon Laser Chip That Emits, Guides Light Developed
SANTA CLARA, Calif., Sept. 18, 2006 -- Researchers announced today that they have, for the first time, combined the light-emitting properties of indium phosphide with the light-routing capabilities of silicon into a single hybrid chip, creating a chip that can transfer data by laser...
LED Inventor Wins $1.3M Millennium Technology Prize
HELSINKI, Finland, June 16, 2006 -- The inventor of a revolutionary new source of light -- bright-blue, green and white LEDs and the blue laser diode -- has won the world's largest technology prize, the 2006 Millennium Technology Prize, worth an estimated $1.3 million. Shuji...
New Optical Modulator Could Make Communications 100 Times Faster
Jan 4, 2006 — ATLANTA, Jan. 4, 2006 -- By using electromagnetic waves instead of electrical current for switching, researchers have operated an optical modulator at terahertz frequencies -– an accomplishment that could one day facilitate data transmission rates...
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