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transistor News
New Optical Switch Could Lead to All-Optical Signal Processing
PASADENA, Calif., Aug. 2, 2022 — An optical switch developed by Caltech researchers harnesses the property of optical nonlinearity and aims to enable ultrafast all-optical signal processing and computing. According to its developers, the technology could help to bypass one of the major limitations of optics-based computing — the need to use electronics-based transistors to process data. Although optical nonlinear functions enable applications in integrated photonics, including all-optical information processing and
Blue-Emitting Diode Shows Limitations and Promise of Perovskite Semiconductors
BERKELEY, Calif., Feb. 18, 2020 — Scientists at the University of California, Berkeley, have created a blue light-emitting diode (LED) from halide perovskite, a new semiconductor material said to be cheap and easy to manufacture, overcoming a barrier that had previously prevented...
Photonic Router Aids Quantum Computing
REHOVOT, Israel, July 15, 2014 — A router capable of guiding single photons could overcome challenges associated with building quantum computers. A team from the Weizmann Institute of Science developed the device, which is based on a single atom connected to a fiber-coupled,...
Better optical modulators boost silicon photonics
BOULDER, Colo., and CAMBRIDGE, Mass. – An improved pair of optical modulators could be a big step toward a major goal in silicon photonics: enabling microprocessors to use light instead of electrical signals to communicate with transistors on a chip. The optical modulators were made at...
Better Optical Modulators Boost Silicon Photonics
BOULDER, Colo., & CAMBRIDGE, Mass., Oct. 3, 2013 — Improvements to two optical modulators are seen as a major step toward a major goal in silicon photonics: enabling microprocessors to use light instead of electrical signals to communicate with transistors on a chip. The pair of optical modulators...
Laser Spectroscopy Overcomes Measurement Challenge
PHILADELPHIA, Sept. 12, 2013 — A "remarkably simple" laser-based approach overcomes the challenge of measuring key aspects of electron behavior while designing ever-smaller components -- which could allow cellphones, laptops and tablets to get increasingly thinner and more energy...
QEOS Launches High-Speed Light-Emitting Products
MELAKA, Malaysia, April 17, 2013— Quantum Electro Opto Systems Sdn. Bhd. (QEOS) has launched its first commercial OEM/ODM products based on its patented high-speed light-emitting technology known as tilted charge dynamics, the company said last week.
Charge-Injection Devices Overcome Radiation Effects
Dec 1, 2012 — An industry expert offers a primer on the advantages of charge-transfer-device imagers. In imaging devices, radiation normally affects certain key parameters – gate threshold voltage, field/channel stop threshold voltage, charge transfer...
Flexible Substrate Receives Display Award
LOS ANGELES, May 18, 2010 — An inorganic-organic hybrid plastic substrate for flexible displays and electronics developed by the Industrial Technology Research Institute (ITRI) in Taiwan, billed as the first and only technology to allow for the mass production and development...
Laser Imaging System Screens Nanotubes
WEST LAFAYETTE, Ind., Nov. 22, 2010 — Researchers have demonstrated a new imaging tool for rapidly screening structures called single-wall carbon nanotubes, possibly hastening their use in creating a faster and more energy-efficient class of computers and electronics. The semiconducting...
Solid-state Sensor Combines Optics, Electronics
PITTSBURGH, Nov. 17, 2010 — University of Pittsburgh researchers have created a nanoscale light sensor that can be combined with near-atomic-size electronic circuitry to produce hybrid optic and electronic devices with new functionality. The team, which also involved...
CMOS X-ray Imaging Shores Up Oil and Gas Operations
Oct 11, 2010 — Current events have spotlighted the deep-sea oil and natural gas industry and have drawn attention to the importance of nondestructive testing (NDT) of critical oil and gas field equipment. For many reasons, leaks can occur over time if the...
Transistor laser breaks the law
CHAMPAIGN, Ill. – A three-port quantum well transistor laser developed by Milton Feng and Nick Holonyak Jr. at the University of Illinois at Urbana-Champaign is rewriting a major current law. Thanks to this device, the behavior of photons, electrons and...
Laser Pulses Changed to RF Signals
WEST LAFAYETTE, Ind., March 5, 2010 – A tiny device capable of converting ultrafast laser pulses into bursts of radio-frequency signals using innovative "microring resonators." Such an advance could enable all comm...
Light Replacing Wires in Chips
YORKTOWN HEIGHTS, N.Y., March 4, 2010 — IBM scientists yesterday unveiled an ultrafast nanophotonic avalanche photodetector for converting faint optical signals into electrical ones. The device, capable of receiving 40 b...
Spintronics Go All-Electric
CINCINNATI, Oct. 28, 2009 – An innovative and novel way to control an electron's spin orientation using purely electrical means has been created for the first time. A multidisciplinary team of University of Cincinnati researchers created the all-electric spin electronics, or...
Light Colors Shrink Chips
BOULDER, Colo., April 20, 2009 – A University of Colorado at Boulder team used both blue and UV light to reduce the size of devices such as computer chips and solar cells. The blue light inscribed the circuitry pattern on a substrate, while the UV light "erased" the pattern edges,...
Transistor Sets Speed Record
Mar 31, 2009 — Defense contractor Northrop Grumman Corp. announced it now holds the Guinness World Record for the fastest transistor. Guinness notified the company that its ultrafast 1-terahertz (THz) transistor set a new world record for transistor speed. The...
Signal Mixer Made from Laser
CHAMPAIGN, Ill., March 20, 2009 – Electrical engineers at the University of Illinois at Urbana-Champaign have made a microwave signal mixer from a tunnel-junction transistor laser, an innovation that should lead to higher-speed electronics and higher-performance integrated circuits.
Clear Transistors Printed
LOS ANGELES, Dec. 17, 2008 -- Using a low-temperature process, engineers have printed a lattice of more than 20,000 n-type and p-type nanotube transistors capable of high-performance electronics on a clear, colorless, 5-in. disk that's as flexible as a playing card. The...
AU Optronics Appoints New CEO
Oct 24, 2008 — Taiwan-based AU Optronics Corp., a maker of thin-film transistor liquid crystal display (TFT-LCD) panels, announced today that Dr. LJ Chen will become its president and CEO, effective Jan. 1, 2009. LJ Chen replaces HB Chen as CEO; HB Chen will serve...
New Optics Field Emerges
WEST LAFAYETTE, Ind., Oct. 16, 2008 -- A new research field called transformation optics may usher in a host of radical advances including a cloak of invisibility and ultrapowerful microscopes and computers by harnessing nanotechnology and "metamaterials." The field, which applies...
Bruce Berkoff to Lead Marketing at Ascent Solar
Oct 6, 2008 — Bruce Berkoff has been appointed its chief marketing officer (CMO), Ascent Solar Technologies Inc. announced Monday. Berkoff brings over 25 years of executive experience in engineering, product development and marketing for technology companies to...
Flexible Display Flaw Fixed
WEST LAFAYETTE, Ind., July 28, 2008 -- A critical flaw to producing transistors for flexible displays from networks of carbon nanotubes -- namely that the metallic nanotubes in the network can cause short circuits -- has been overcome by changing the way such nanotube circuits are made....
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...
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May 2024
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