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optical device News
Signals amplified by light alone
MINNEAPOLIS/ST. PAUL – The discovery that the force of light in a nanoscale switch is strong enough to move an optical waveguide without having to rely on the device’s mechanical structure could dramatically increase Internet download speeds while also consuming less power. The microscale optical device, developed at the University of Minnesota, uses the force generated by light to flop a mechanical light-based switch on and off at very high speeds. This development could lead to advances in computation and s...
All-Optical Amplification of Signals
MINNEAPOLIS/ST. PAUL, Oct. 3, 2012 — The discovery that the force of light in a nanoscale switch is strong enough to move an optical waveguide without having to rely on the device’s mechanical structure could dramatically increase Internet download speeds while also consuming...
Supercapacitors created from laser-scribed graphene
LOS ANGELES – A novel graphene-based electrode, produced with a standard LightScribe DVD optical drive, ends the search for an optimal electrochemical capacitor. The discovery could pave the way for a new class of flexible energy-storage devices. ...
Optical Drive Etches Graphene Supercapacitors
LOS ANGELES, March 21, 2012 — The search for an optimal electrochemical capacitor has been held up by the need for an electrode with energy density comparable to that of a battery. A novel graphene-based electrode, produced with a standard LightScribe DVD optical drive, could...
Light on Chip Slowed to a Crawl
SANTA CRUZ, Calif., Sept. 9, 2010 — A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1200. Each of the 32 units fabricated on this four-inch silicon wafer is an integrated...
Practice mirror goes 3-D
Leeds, UK – For a musician, the traditional optical device is the mirror. A violinist stands in front of one while practicing to visualize whether his bow is parallel to the bridge and his instrument positioned optimally in relation to his body. Dr. Kia Ng,...
Device Filters Photons
BRISTOL, UK, Jan. 23, 2009 – Quantum technologies just got a boost from a recent demonstration of an optical device that filters two particles of light (photons) based on the correlations between their polarization that are allowed only in the quantum world. This...
Progress Made Toward Single-Qdot Laser
GAITHERSBURG, Md., April 16, 2007 -- A micrometer-sized solid-state laser has been built that, while not powered by a single quantum dot, effectively demonstrates that just one dot can play a dominant role in the device's performance. These highly efficient optical devices could one...
Fujitsu and Mitsui Launch Optical Device Venture
Jun 1, 2006 — Fujitsu Ltd. and Mitsui & Co. Ltd. of Tokyo have provided venture capital to establish an optical device company, QD Laser Inc. Using Fujitsu’s technology, QD Laser will offer quantum dot lasers to the optical telecommunications light source...
NEC Tokin Transfers Optical Device Business
Jun 1, 2006 — In Japan, NEC Tokin Corp. of Miyagi will transfer its optical device business to Seikoh Giken Co. Ltd. of Chiba. The former intends to focus on PC-related equipment, mobile phones, digital consumer electronics and automotive products, and to invest...
Combs May Have Navigation and Display Applications
Nov 1, 2004 — Researchers at Sandia National Laboratories in Albuquerque, N.M., have demonstrated a near-field optical device that could have far-reaching applications, from navigation systems to display technologies. Fabricated using standard...
(11 results found)
May 2024
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