Navigation Links
Penn researchers build first physical 'metatronic' circuit
Date:2/23/2012

un, Brian Edwards and Andrea Al, was published in the journal Nature Materials.

In electronics, the "lumped" designation refers to elements that can be treated as a black box, something that turns a given input to a perfectly predictable output without an engineer having to worry about what exactly is going on inside the element every time he or she is designing a circuit.

"Optics has always had its own analogs of elements, things like lenses, waveguides and gratings," Engheta said, "but they were never lumped. Those elements are all much larger than the wavelength of light because that's all that could be easily built in the old days. For electronics, the lumped circuit elements were always much smaller than the wavelength of operation, which is in the radio or microwave frequency range."

Nanotechnology has now opened that possibility for lumped optical circuit elements, allowing construction of structures that have dimensions measured in nanometers. In this experiment's case, the structure was comb-like arrays of rectangular nanorods made of silicon nitrite.

The "meta" in "metatronics" refers to metamaterials, the relatively new field of research where nanoscale patterns and structures embedded in materials allow them to manipulate waves in ways that were previously impossible. Here, the cross-sections of the nanorods and the gaps between them form a pattern that replicates the function of resistors, inductors and capacitors, three of the most basic circuit elements, but in optical wavelengths.

"If we have the optical version of those lumped elements in our repertoire, we can actually make designs similar to what we do in electronics but now for operation with light," Engheta said. "We can build a circuit with light."

In their experiment, the researchers illuminated the nanorods with an optical signal, a wave of light in the mid-infrared range. They then used spectroscopy to measure the wave as it passed
'/>"/>

Contact: Evan Lerner
elerner@upenn.edu
215-573-6604
University of Pennsylvania
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Pitt researchers coax gold into nanowires
2. York researchers create tornados inside electron microscopes
3. Self-assembling nanorods: Berkeley Lab researchers obtain 1-, 2- and 3-D nanorod arrays and networks
4. Navy researchers investigate small-scale autonomous planetary explorers
5. Notre Dame researchers develop paint-on solar cells
6. Quantum computing has applications in magnetic imaging, say Pitt researchers
7. Researchers measure nanometer scale temperature
8. Notre Dame researchers demonstrate new DNA detection technique
9. Researchers realize high-power, narrowband terahertz source at room temperature
10. MU researchers identify key plant immune response in fight against bacteria
11. Researchers develop one of the worlds smallest electronic circuits
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Penn researchers build first physical 'metatronic' circuit
(Date:9/17/2014)... September 17, 2014 Terracon Corporation has ... its TerraPure tank . This addition to the ... from FDA-compliant linear polyethylene and available in 125 or ... and ships in two weeks or less. , The ... benefits found in Terracon’s existing TerraPure tank line – ...
(Date:9/17/2014)... SOUTH SAN FRANCISCO, Calif. , Sept. 17, 2014 ... VCYT ), a molecular diagnostics company pioneering the field ... M. Hall to chief operating officer. Mr. ... to spearhead the company,s commercial entry into endocrinology. Since ... service operations, as well as managed care and billing ...
(Date:9/17/2014)... Scotland , September 17, 2014 /PRNewswire/ ... new mode of action from a truly ... decade  MGB Biopharma, a biopharmaceutical ... anti-infectives, announces today that it has secured ... its lead antibacterial, MGB-BP-3, against a range ...
(Date:9/16/2014)... 2014 This report analyzes the worldwide markets for ... Hardware, and Biocontent. The report provides separate comprehensive analytics for ... , Europe , Asia-Pacific ... of World. Annual estimates and forecasts are provided for the ... provided for these markets. Market data and analytics are derived ...
Breaking Biology Technology:Terracon Introduces Pre-Engineered TerraPure® Tank for Ultrapure Water Applications 2Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 2Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 3Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 2MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 3MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 6MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 7Global Bioinformatics Industry 2Global Bioinformatics Industry 3Global Bioinformatics Industry 4Global Bioinformatics Industry 5Global Bioinformatics Industry 6Global Bioinformatics Industry 7Global Bioinformatics Industry 8Global Bioinformatics Industry 9Global Bioinformatics Industry 10Global Bioinformatics Industry 11Global Bioinformatics Industry 12Global Bioinformatics Industry 13Global Bioinformatics Industry 14Global Bioinformatics Industry 15Global Bioinformatics Industry 16Global Bioinformatics Industry 17Global Bioinformatics Industry 18Global Bioinformatics Industry 19Global Bioinformatics Industry 20Global Bioinformatics Industry 21Global Bioinformatics Industry 22Global Bioinformatics Industry 23
... 13 Nile Therapeutics, Inc.,(Nasdaq: NLTX ), today ... present at the Rodman & Renshaw 5th Annual Global ... at Le Meridian Beach,Plaza Hotel in Monte Carlo, Monaco. ... the status of Nile,s current clinical development,programs., The ...
... Foamix Offers New Intravaginal Foam Technology with Improved Usability & ... ... Israel, May 13 Despite the high incidence,of women,s health conditions ... and ovules, a recent survey,found that an alarming majority of women ...
... with CelVida Yields First Milestone, NEW YORK, May ... pioneering the pre-disease collection, processing and long-term,storage of adult ... a,site has been secured for a new stem cell ... Robin Smith, MD MBA, NeoStem,s Chairman and Chief ...
Cached Biology Technology:Nile Therapeutics to Present at the Rodman & Renshaw 5th Annual Global Healthcare Conference 272% of Women Are Dissatisfied With Their Current Treatment of Vaginal Infection, Survey Finds 2NeoStem to Expand Stem Cell Collection Center Network to Florida 2NeoStem to Expand Stem Cell Collection Center Network to Florida 3
(Date:9/17/2014)... has developed, very cleverly, some lessons on how to ... said Joseph Shaw, director of the Optical Technology Center ... structures at the nanoscale, we,ll discover them." , Some ... August during a conference called "The Nature of Light: ... of the University of Arizona College of Optical Sciences. ...
(Date:9/17/2014)... at IMIM (Hospital del Mar Medical Research Institute) and ... published a study in eLife showing that ... the evolution of new proteins, some of which could ... produce proteins from the instructions found in an RNA ... RNA containing information for the synthesis of proteins, meaning ...
(Date:9/17/2014)... Mutations in the human retinoblastoma protein gene are a ... scientists have turned to fruit fly eyes to unlock ... In a paper featured on the cover of the ... , Michigan State University researchers provide the first detailed ... present in the human cancer gene, said Irina Pushel, ...
Breaking Biology News(10 mins):Nature's designs inspire research into new light-based technologies 2Nature's designs inspire research into new light-based technologies 3Parts of genome without a known function may play a key role in the birth of new proteins 2Abnormal properties of cancer protein revealed in fly eyes 2
... A child,s chances of developing allergies or wheezing is related ... the womb, according to scientists from the University of Southampton. ... Council (MRC) and the British Lung Foundation, and undertaken at ... early pregnancy but falter later in pregnancy are likely to ...
... apply natural make-up to their feathers to stand out and ... from the Estacin Biolgica de Doňana in Seville, Spain, and ... transfer the color pigments (carotenoids) from the secretions of their ... is found in the majority of birds and is situated ...
... Pacific Data Designs) today announced that David Herron has ... executive officer.  In addition, David has been named to ... well equipped to lead this company into the next ... relationships and operational leadership are fundamentally important to ClinOps ...
Cached Biology News:Allergies and wheezing illnesses in childhood may be determined in the womb 2Beauty from the bottom up 2ClinOps Announces Appointment of New President and CEO 2
... Zealand White or Californian 8 - 10 ... 6 hours of collection, processed within 24 ... is then thawed in a cool waterbath, ... through a 0.22 micron filter, bottled, and ...
... Detection Assay is an anchorage-independent growth assay ... most stringent assay for detecting malignant transformation ... (pre-treated with carcinogens or carcinogen inhibitors) are ... medium for 21-28 days. Following this ...
... DNA Methylation Kit uses a simplified procedure ... methylation analysis. The kit is based on ... between cytosine and sodium bisulfite where cytosine ... Methylation Kits innovative in-column desulphonation reaction eliminates ...
... is a lyophilized mixture of five ... weights range from 152 to 504. ... with the Aminex HPX-87C column and ... testing or semiquantitative determination. Supplied as ...
Biology Products: