Navigation Links
Scientists scale terahertz peaks in nanotubes
Date:12/9/2013

the small band gaps in semiconducting nanotubes. We rejected that in this paper."

Plasmons are free electrons on the surface of metals like gold, silver or even aluminum nanoparticles that, when triggered by a laser or other outside energy, ripple like waves in a pond. Strong waves can trigger plasmon responses in adjacent nanoparticles. They are being investigated at Rice and elsewhere for use in sophisticated electronic and medical applications.

The Kono group's research showed plasmons rippling at terahertz frequencies only along the length of a nanotube, but not across its width. "The only way charge carriers can move around is in the long direction," Kono said. The researchers previously used this fact to demonstrate that aligned carbon nanotubes act as an excellent terahertz polarizer with performance better than commercial polarizers based on metallic grids.

Nanotubes can be thousands of times longer than they are wide, and the ability to grow them (or cut them) to specific lengths or to dope semiconducting nanotubes to add free carriers would make the tubes highly tunable for terahertz frequencies, Kono said.

"This paper only clarifies the origin of this effect," he said. "Now that we understand it, there's so much to do. We will be making various terahertz devices, architectures and systems based on carbon nanotube plasmons."


'/>"/>

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Scientists defuse the Vietnam time bomb
2. Singapore scientists lead human embryonic stem cell study
3. Sheffield scientists shine a light on the detection of bacterial infection
4. Nanowiggles: Scientists discover graphene nanomaterials with tunable functionality in electronics
5. Scientists solve mystery of colorful armchair nanotubes
6. iBioSeminars and iBioMagazine: Free, Online Biology Seminars and Short Talks by Leading Scientists
7. Chinese Scientists Zhen-Yi Wang and Zhu Chen Awarded 7th Annual Szent-Gyorgyi Prize for Progress in Cancer Research
8. Scientists decode brain waves to eavesdrop on what we hear
9. Receptos Scientists Publish Determination of a High Resolution Sphingosine 1-Phosphate Receptor 1 Structure in Science
10. Scientists learn how to out run damage with imaging technique
11. Design eye for the science guy: Drop-in clinic helps scientists communicate data
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists scale terahertz peaks in nanotubes
(Date:8/29/2014)... August 29, 2014 The global ... billion in 2019. It is expected to grow ... 2019, and was valued at $1.8 billion in ... Transparency Market Research. , For more information regarding ... . , The research report, titled “Companion Diagnostics ...
(Date:8/29/2014)... According to a new market report published by ... was valued at USD 3,754.6 million in 2012 and is ... a CAGR of 5.9% from 2013 to 2019. , Nearly ... afflicted by bone and joint disorders, and this number is ... and will continue to increase the demand for orthobiologics. Other ...
(Date:8/29/2014)... 29, 2014 Pittcon is pleased to ... colleague Koichiro Matsuda, Horiba Scientific, have organized a session ... 2014. JASIS , Asia’s largest analytical and scientific ... Makuhari Messe, Japan. , The four speakers in ... from Single Molecules to Single Cells” will present their ...
(Date:8/29/2014)... 29, 2014 /PRNewswire/ - iCo Therapeutics ("iCo" or ... financial results for the six months ended June ... in Canadian dollars and presented under International Financial ... Highlights , Announced top-line results related ... endpoint for subjects enrolled in the Phase 2 ...
Breaking Biology Technology:Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 2Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 3Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 2Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 3Fifth Annual U.S. Symposium at JASIS Organized by Pittcon’s Program Chairman Hub MacDonald 2iCo Therapeutics Announces Second Quarter 2014 Financial Results 2iCo Therapeutics Announces Second Quarter 2014 Financial Results 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 4
... Colo., March 23 N30 Pharma (N30) today ... the Board of Directors of the Company.Dr. Loscalzo ... and Practice of Medicine at Harvard , ... Circulation, and has recently joined the senior editorial ...
... ("BVF") today announced that PROXY Governance, widely recognized as a ... for all BVF Proposals on the GOLD proxy card for ... ) to be held on March 27, 2009.In its report ... (BVF) must clear a high bar to justify a change ...
... March 23 PAREXEL International Corporation (Nasdaq: ... provider, today announced that the Company has received ... from BioSingapore, an industry association for life sciences ... Singapore. The award was presented to PAREXEL at ...
Cached Biology Technology:Leading Advisory Firm, PROXY Governance, Recommends Avigen Shareholders Vote on GOLD Card to Remove Incumbent Directors and Elect BVF's Stockholder-Oriented Nominees 2PAREXEL Receives BioSingapore Award for Best Performing CRO 2PAREXEL Receives BioSingapore Award for Best Performing CRO 3PAREXEL Receives BioSingapore Award for Best Performing CRO 4
(Date:8/29/2014)... U.S. Ebola researcher from the University of Texas Medical Branch ... of three monoclonal antibodies can completely protect monkeys against a ... infection, at a time when the disease is severe. , ... editorial for Nature discussing advances in Ebola treatment ... are among the most deadly of pathogens, with fatality rates ...
(Date:8/29/2014)... climatic shifts over the last 120,000 years may ... team of researchers led by City College of ... new biodiversity metric called "phylogeographic endemism." , It ... within species is restricted in geographical space. , ... 14 other researchers from institutions in Brazil, Australia ...
(Date:8/29/2014)... researchers explored the type and number of connections in ... plays on robustness in a study published in ... found that the assortativity signature contributes to a network,s ... that varying the out-out assortativity of TFN models has ... the other three types of assortativity," said Dov A. ...
Breaking Biology News(10 mins):Leading Ebola researcher at UTMB says there's an effective treatment for Ebola 2CCNY team defines new biodiversity metric 2Assortativity signatures of transcription factor networks contribute to robustness 2
... at Vanderbilt University have "engineered" a mouse that can ... normal mouse by increasing its supply of acetylcholine, the ... month in the journal Neuroscience, could lead to new ... occurs when cholinergic nerve signals fail to reach the ...
... Plastics-based materials have been in use for decades. ... their quest for new developments: Substantial influences of ... cannot be observed directly. The synthetic polymer molecules ... mechanical experiments. A team of physicists led by ...
... scientists and physicians at the Medical College of Wisconsin and ... treat an unknown disease. For the one of the ... Medical College of Wisconsin and Children,s Hospital of Wisconsin sequenced ... previously-unknown mutation. The team was able not only to ...
Cached Biology News:Boosting supply of key brain chemical reduces fatigue in mice 2Muscle filaments make mechanical strain visible 2Scientists and physicians use genetic sequencing to identify and treat unknown disease 2
... of mouse embryonic stem cells to dopaminergic ... midbrain, where they are mainly located in ... and the retrorubral field. These dopaminergic (DA) ... innervation ( e.g.projections to the caudate nucleus, ...
... provides a comprehensive epitope analysis service ... on Paraflo microfluidic chips for immunological ... This comprehensive service includes assistance with ... sample(s) provided by you, single or ...
... ,Schistosomal glutathione-S-transferase (GST) is commonly used ... in E. coli (1). The GSTTag sequence ... and in some cases the solubility of ... soluble, properly folded form, GSTTag fusion proteins ...
... is commonly used as a fusion partner ... The GSTTag sequence has been reported to ... the solubility of its fusion partners. When ... GSTTag fusion proteins can be purified with ...
Biology Products: