Navigation Links
University of Pennsylvania scientists move optical computing closer to reality
Date:8/19/2008

PHILADELPHIA - Scientists at the University of Pennsylvania have theorized a way to increase the speed of pulses of light that bound across chains of tiny metal particles to well past the speed of light by altering the particle shape. Application of this theory would use nanosized metal chains as building blocks for novel optoelectronic and optical devices, which would operate at higher frequencies than conventional electronic circuits. Such devices could eventually find applications in the developing area of high-speed optical computing, in which protons and light replace electrons and transistors for greater performance.

Colleagues in the Department of Bioengineering, Alexander A. Govyadinov and Vadim A. Markel, also of the Department of Radiology at Penn, published the study in a recent issue of the journal Physical Review B.

Recent developments in nanotechnology have enabled researchers to fabricate nanoparticle chains with great precision and fidelity. Penn's research team took advantage of this technological advance by utilizing metallic nanoparticles as a chain of miniature waveguides that exchange light.

Currently, the advance is theoretical. But, from a practical standpoint, the creation of a metallic nanochain would provide the combination of smaller-diameter optical components coupled with larger bandwidth, making them optimal wave guiding materials. As the velocity of the light pulse increases, so too does the operating bandwidth of a waveguide. Increasing the bandwidth helps to increase the number of information channels, allowing more information to flow simultaneously through a waveguide.

Researchers investigated changing the shape of particles in an attempt to increase this bandwidth. Spherically-shaped nanoparticles, the shape used almost exclusively in early research, provide narrow bandwidths of light. As Markel and Govyadinov discovered, shaping the particles as prolate, cigar-shaped or oblat
'/>"/>

Contact: Jordan Reese
jreese@upenn.edu
215-573-6604
University of Pennsylvania
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. GlaxoSmithKline Recognizes University of Michigans Dr. Daniel F. Hayes as the First Recipient of the Gianni Bonadonna Breast Cancer Award
2. BioMarin Licenses Technology From Leading Cystic Fibrosis Research Laboratory at the University of California, San Francisco
3. Microchip Biotechnologies, Inc. Secures Exclusive License to Use New University of Alberta Technology for Developing Microfluidic Devices
4. Alliance for Medical Devices, Instrumentation and Diagnostics formed between Fraunhofer Center for Manufacturing Innovation and Boston University
5. The University of Nottingham in the British Midlands Announces Development of Possible Hepatitis C Vaccine
6. University of Leicester scientists discover technique to help friendly bacteria
7. MichBio Announces Student Career Day at Michigan State University
8. Dr. Thomas Van Dyke Renowned Boston University Professor Joins Imagenetixs Medical Advisory Board
9. University HealthSystem Consortium Chooses SciQuest to Optimize Medical Research Procurement
10. Helix Biopharma announces addition of University of Arizona professor Kenneth Hatch as new medical advisor
11. McGill University Purchases GenVaults Personal Archive System to Manage Rare Cancer Samples
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... , SAN DIEGO, Aug. 6 SEQUENOM, Inc. ... ended June 30, 2009. , , (Logo: http://www.newscom.com/cgi-bin/prnh/20040415/SQNMLOGO ) , ... Total revenue for the second quarter of 2009 was $9.2 million, ... the comparable period last year was primarily due to softness in capital expenditure ...
... ... Launch Of Its New And Improved Website. The New Site Provides Users With A ... Functionality And Navigation. The Site Also Offers An Expanded Service Description For Each Of ... ...
... , , LOS ANGELES, Aug. 6 ... an 82 year-old Chinese female immigrant who suffered Stevens-Johnson Syndrome/Toxic Epidermal ... Defendant, an osteopathic physician and registered pharmacist, prescribed it to her ... did not have gout. The doctor claimed that she told ...
Cached Biology Technology:SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 2SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 3SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 4SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 5SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 6SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 7SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 8SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 9SEQUENOM Reports Second Quarter 2009 Financial Results and Highlights 10One of the Nation's Leading Analytical Testing Laboratories is Now Easier to Access -- Pace Analytical Launches New Web Site to Showcase Its Three Business Divisions 2The Law Offices of Brian D. Witzer Wins 6+ Million Dollar Verdict 2
(Date:12/19/2014)... --  LaunchKey , the first decentralized mobile authentication and ... Things era, today announced the close of $3 million ... by Metamorphic Ventures with participation from ENIAC Ventures, Crosslink ... LaunchKey has raised $4 million to date, and will ... bring LaunchKey to market in 2015. LaunchKey ...
(Date:12/17/2014)... , Dec. 16, 2014 Research and ... the addition of the "Global Chemical Sensor ... http://photos.prnewswire.com/prnh/20130307/600769 ... the increasing demand for medical sensors in biomedical ... data for quick and correct diagnosis during surgical ...
(Date:12/11/2014)... 2014  That blood pressure plays a role in human ... the medical term for high blood pressure – was first ... inflatable cuff that,s used in measuring blood pressure was invented ... new about hypertension, its triggers and its effects. In fact, ... and the best ways to treat it. For ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4
... FRANCISCO - Scientists from the Department of Energy,s Pacific ... energy-related research at the 2012 American Geophysical Union Fall ... 7 at the Moscone Convention Center in San Francisco. ... measuring the resources needed to grow algae for biofuel ...
... The William R. Kenan, Jr. Charitable Trust has awarded ... $1 million to support the institute,s education outreach programs ... single gift to date in support of Scripps Florida,s ... Kenan Trust support, the new four-year grant will run ...
... study may help scientists produce better climate-resistant corn and other ... that we are what we eat. Kansas State University ... used to study and prioritize the genes in humans, it ... plants. These genes control quantitate traits in plants, such as ...
Cached Biology News:Sunshine, biofuel and the tides, oh my! 2Sunshine, biofuel and the tides, oh my! 3Study finds prioritizing rather than canvassing entire plant genome may lead to improved crops 2Study finds prioritizing rather than canvassing entire plant genome may lead to improved crops 3
... Simplify the process and you reduce the ... into the CEQ 8000. Developed using Beckman ... leadership in capillary electrophoresis technology, the CEQ ... system. This system automatically fills the capillary ...
... standard electrophoresis hood is a ... systems. Placed on the transilluminator, ... place and provides a darkroom ... the lab bench. This 13 ...
... Zyagen tissue microarrays are derived from ... to rigorous quality control procedures to ensure ... are manually assembled in one block, sectioned ... mounted on coated slides. Sections are large ...
... Zyagen tissue microarrays are derived from Paraffin ... rigorous quality control procedures to ensure the ... manually assembled in one block, sectioned at ... on coated slides. Sections are large (3-5 ...
Biology Products: