Navigation Links
Needle beam could eliminate signal loss in on-chip optics
Date:9/7/2012

Cambridge, Mass. September 7, 2012 - An international, Harvard-led team of researchers have demonstrated a new type of light beam that propagates without spreading outwards, remaining very narrow and controlled along an unprecedented distance. This "needle beam," as the team calls it, could greatly reduce signal loss for on-chip optical systems and may eventually assist the development of a more powerful class of microprocessors.

Based at the Harvard School of Engineering and Applied Sciences (SEAS) and the Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS, in France, the applied physicists both characterized and created this needle beam, which travels efficiently at the interface of gold and air. Their findings were published online August 31 in the journal Physical Review Letters.

The needle beam arises from a special class of quasiparticles called surface plasmons, which travel in tight confinement with a metal surface. The metallic stripes that carry these surface plasmons have the potential to replace standard copper electrical interconnects in microprocessors, enabling ultrafast on-chip communications.

One of the fundamental problems that has so far hindered the development of such optical interconnects is the fact that all waves naturally spread laterally during propagation, a phenomenon known as diffraction. This reduces the portion of the signal that can actually be detected.

"We have made a major step toward solving this problem by discovering and experimentally confirming the existence of a previously overlooked solution of Maxwell's equations that govern all light phenomena," says principal investigator Federico Capasso, Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical Engineering at SEAS. "The solution is a highly localized surface plasmon wave that propagates for a long distance, approximately 80 microns in our experiments, in a straight line wit
'/>"/>

Contact: Caroline Perry
cperry@seas.harvard.edu
617-496-1351
Harvard University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. NxStage Extends Agreement to Supply Streamline Bloodlines, MasterGuard and Buttonhole Needle Technology to B. Braun
2. Breaking Study: ICU Medicals Tego® Needlefree Connector Proves More Cost Effective Than Traditional Central Venous Catheter Locks
3. Protein that helps tumor blood vessels mature could make cancer drugs more effective
4. Botanical compound could prove crucial to healing influenza
5. Gold nanoparticles could treat prostate cancer with fewer side effects than chemotherapy
6. Draper Device Could Help Pave Way Towards “Kidney-On-A-Chip” Development
7. Penn researchers study of phase change materials could lead to better computer memory
8. Research could lead to new drugs for major diseases
9. New twist on old chemical process could boost energy efficiency
10. Armored caterpillar could inspire new body armor
11. Nanocable could be big boon for energy storage
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Needle beam could eliminate signal loss in on-chip optics
(Date:1/15/2014)... ­ RedBrick Health , a fast-growing leader in ... that EmblemHealth , the New York ... providing the RedBrick Compass health assessment, combined with the ... its members. EmblemHealth is among the first health plans ...
(Date:1/15/2014)... A study has been launched to test whether technology ... help to tackle the problem of obesity.  This unique healthcare ... based in Stowmarket) and academics at University Campus Suffolk is ... which is inspired by equipment used to collect data about ...
(Date:1/15/2014)... Two champions of science, technology, engineering, ... an annual competition for middle and high school students ... STEM study. The competition presents students with real-world problems ... Aptitude, Mathematics, and Sciences is a program administered ...
(Date:1/15/2014)... 15, 2014 DTS Language Services, Inc ... Web Portal for Life Science organizations who need document translations. ... subject matter of their documents in advance with a selection ... time-to-delivery of translations, often a critical factor in clinical and ...
Breaking Biology Technology:EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5DTS Improves Efficiency for Life Science Document Translations 2
... -- China,Biologic Products, Inc. (OTC Bulletin Board: CBPO) ("CBP," ... in the People,s,Republic of China ("PRC"), today announced that ... on Tuesday, May 19, 2009, to discuss the 2009 ... the call will be Mr. Colin Zhao, Chief Executive ...
... the 92 naturally occurring elements, add another to the list ... professor of physics in Arts & Sciences at Washington University ... student at the time discovered that europium becomes superconducting ... of pressure, making it the 53rd known elemental superconductor and ...
... Nile Therapeutics, Inc. (Nasdaq: NLTX ), ... for heart failure patients, received notification from the U.S. ... released the Company,s CD-NP development program from clinical hold.As ... FDA the finalized protocol for the Company,s planned 30-patient ...
Cached Biology Technology:China Biologic Products Announces 2009 First Quarter Results Conference Call 2Europium discovery 2Europium discovery 3Nile Therapeutics CD-NP Clinical Program for Acute Heart Failure Released From Clinical Hold by FDA 2Nile Therapeutics CD-NP Clinical Program for Acute Heart Failure Released From Clinical Hold by FDA 3
(Date:4/17/2014)... In the most densely forested and most densely populated ... of human needs, values and practices. Disturbances associated with ... agriculture and development, have set the stage for management ... study reports. , The report Five anthropogenic factors ... in the Northern United States was published ...
(Date:4/17/2014)... 2014The development of stem cell therapies to cure a ... stem cell populations based on cell surface markers. Researchers ... marker that is highly expressed in a type of ... they describe in an article in BioResearch Open ... Inc., publishers. The article is available free on the ...
(Date:4/17/2014)... detection cartridge developed at Sandia National Laboratories and recently ... faster and cheaper. , Bacillus anthracis , ... soils all over the world and can cause serious, ... The bacteria can survive in harsh conditions for decades. ... occur through skin contact, inhalation of spores or eating ...
Breaking Biology News(10 mins):Five anthropogenic factors that will radically alter northern forests in 50 years 2Five anthropogenic factors that will radically alter northern forests in 50 years 3Pocket-sized anthrax detector aids global agriculture 2Pocket-sized anthrax detector aids global agriculture 3
... Wasps, bees, ants and relatives comprise the megadiverse ... speciose animal group on Earth, far surpassing the ... most diverse orders of animals (beetles, butterflies, wasps, ... insects with complete metamorphosis, i.e. having a dormant ...
... Elsevier, EuroStemCell, and Kyoto University,s Institute for Integrated ... Trends and Perspectives on the Evolving International Landscape" at ... of the growth and development of the stem cell ... for embryonic stem (ES) cell, human embryonic stem (hES) ...
... a scientist exposes rats to a certain pesticide over ... similar to those seen in Parkinson,s patients. But the ... affects 7 million to 10 million people worldwide, is ... Engineering News , the weekly newsmagazine of the American ...
Cached Biology News:Fossils clarify the origins of wasps and their kin: alderfly ancestors, snakefly cousins 2New report on stem cell research reveals the field is growing twice as fast as the world average 2New report on stem cell research reveals the field is growing twice as fast as the world average 3
...
... All MagCellect Ferrofluid products ... conjunction with R&D Systems MagCellect ... capacities, this neodymium iron boron ... 12 x 75 mm test ...
S. O'Hare & C.K. Atterwill • In vitro toxicity techniques for regular lab use. Ex vivo techniques are also covered with the aim of reducing and refining the use of animals in the future....
Agarase cleaves agarose to neoagaro-oligosaccharides, and is used for,quantitative, gentle recovery of DNA from low melting point agarose....
Biology Products: