Navigation Links
Taming light with graphene
Date:6/20/2012

Spanish research groups achieve first ever visualizations of light guided with nanometric precision on graphene (a one-atom-thick sheet of carbon atoms). This visualization proves what theoretical physicists have long predicted; that it is possible to trap and manipulate light in a highly efficient way, using graphene as a novel platform for optical information processing and sensing. Synergies between theoretical proposals from IQFR-CSIC (Madrid), specializations in graphene nano-photonics and nano-optoelectonics at ICFO (Barcelona), and experimental expertise in optical nano-imaging at nanoGUNE (San Sebastian) give rise to these noteworthy results reported in Nature this week in a back-to-back publication alongside a similar study by the group of Dmitry Basov in UCSD in California.

Graphene is a material that, among many other fascinating properties, has an extraordinary optical behavior. Particularly interesting optical properties had been predicted for the case that light couples to so-called plasmons, wave-like excitations that were predicted to exist in the "sea" of conduction electrons of graphene. However, no direct experimental evidence of plasmons in graphene had been shown up to this work. This is because the wavelength of graphene plasmons is 10 to 100 times smaller than what can be seen with conventional light microscopes. Now, the researchers show the first experimental images of graphene plasmons. They used a so called near-field microscope that uses a sharp tip to convert the illumination light into a nanoscale light spot that provides the extra push needed for the plasmons to be created. At the same time the tip probes the presence of plasmons (see figure). Rainer Hillenbrand, leader of the nanoGUNE group comments: "Seeing is believing! Our near-field optical images definitely proof the existence of propagating and localized graphene plasmons and allow for a direct measurement of their dramatically reduced wavelength."


'/>"/>
Contact: Aitziber Lasa Iglesias
a.lasa@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. NASA develops super-black material that absorbs light across multiple wavelength bands
2. A light wave of innovation to advance solar energy
3. The Foremost Expert on Morgellons Disease Highlights the Gravity of This Illness
4. BioSpace Spotlights Northwests Life Science Community
5. Multidisciplinary team of researchers develop world’s lightest material
6. Blocked holes can enhance rather than stop light going through
7. Novartis Highlights Advances for Patients With Breast Cancer and Hematological Diseases With Over 160 SABCS and ASH Abstracts
8. New 3-D transistors promising future chips, lighter laptops
9. Sheffield scientists shine a light on the detection of bacterial infection
10. Cotton fabric cleans itself when exposed to ordinary sunlight
11. BioSpace Spotlights Leading Life Science Community
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Taming light with graphene
(Date:7/30/2014)... While administrative claims and other ... for a relatively long period of time, there ... use of these ‘big data’ for comparisons of ... today’s powerful computer technology with the plethora of ... holds significant promise for identifying optimal interventions for ...
(Date:7/30/2014)... July 30, 2014. Applied DNA Sciences, ... provides DNA-based authentication and security solutions and services, has ... Life Sciences, a newly created position, with a starting ... lead APDN’s drive to build its business in pharmaceuticals ... customers, provide guidance to APDN’s R&D efforts, and apply ...
(Date:7/30/2014)... JUPITER, Fla. , July 30, 2014 /PRNewswire/ ... global biotechnology company whose patented and proprietary technologies ... enzymes and other proteins for the bioenergy, bio-based ... the appointment of Thomas "Tom" Dubinski as Vice ... responsible for leading the financial and information technology ...
(Date:7/30/2014)... NCERC at Southern Illinois University Edwardsville ... on corn stover pretreatment methods at a U.S. ... D.C. , “Arun’s selection for presentation at ... to the success of our postdoctoral fellowship program,” ... foresight and vision of SIUE and the Illinois ...
Breaking Biology Technology:Leveraging ‘Big Data’ - Methodological Considerations in Health Services Research, New Webinar Hosted by Xtalks 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 3Thomas Dubinski joins Dyadic as Chief Financial Officer 2Thomas Dubinski joins Dyadic as Chief Financial Officer 3Thomas Dubinski joins Dyadic as Chief Financial Officer 4NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 2NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 3
... coverage and megabase capacity for the next generation ... febit today announced the official ... In several biomedical studies of early access customers ... factors and deep sequencing coverage for a broad ...
... debuts PAKSCAN, a new-look Pharma-packaging leak tester machine for medical pouches ... ... Ireland (PRWEB) March 16, 2009 -- A leak tester ... by Northern Irish company, sepha makes its U.S. market ...
... Prometheus Laboratories Inc., a specialty pharmaceutical and diagnostic company, ... approval for PROMETHEUS(R) IBS Diagnostic, the first and only ... novel test incorporates 10 biomarkers, two of which are ... diagnose patients with IBS."One out of five Americans has ...
Cached Biology Technology:Automated Sequence Capture for Next-Generation Sequencing Paves the Way for Personalized Medicine 2Automated Sequence Capture for Next-Generation Sequencing Paves the Way for Personalized Medicine 3U.S. Distributor Debut for PAKSCAN - a Pouch & Sachet Leak Tester Machine from Ireland-based Sepha Ltd. 2U.S. Distributor Debut for PAKSCAN - a Pouch & Sachet Leak Tester Machine from Ireland-based Sepha Ltd. 3Prometheus Receives New York State Approval for PROMETHEUS(R) IBS Diagnostic, First Blood Test for Irritable Bowel Syndrome 2
(Date:7/30/2014)... Professor Steven Chown has been awarded the Scientific ... Excellence in Antarctic Research. , SCAR, an inter-disciplinary ... quality international scientific research in the Antarctic region, ... in the Earth system. The organisation also provides ... System, responsible for governing the region. , The ...
(Date:7/30/2014)... roughly 3,000 pieces is still in its infant stage. ... be of major significance. "Amazingly often, we are findingin ... amber that we found in Baltic amber," explained Bonn ... amber comes from the Baltic Sea region, which is ... are, e.g., the coastal regions of Mecklenburg, Poland and ...
(Date:7/29/2014)... The advanced optical methods and applications for imaging and ... in the neurosciences were the inspiration behind Neurophotonics ... international society for optics and photonics. , The first ... in the United States, and a special section features ... examples of the impact that optics and photonics will ...
Breaking Biology News(10 mins):Chinese mosquitos on the Baltic Sea 2SPIE launches Neurophotonics journal with special section on BRAIN Initiative 2SPIE launches Neurophotonics journal with special section on BRAIN Initiative 3
... a scientist with the Oklahoma Medical Research Foundation, has found ... The discovery could have important implications for the treatment of ... findings appear in the April 13 issue of the journal ... go backwards before now," said Gorbsky, who holds the W.H. ...
... produce a substance which prevents the AIDS pathogen HIV from ... of research carried out by scientists at the University of ... years now the hopes for a completely new group of ... 'DCQA'. However, the substance is only available in very small ...
... genetic cause in up to 80 percent of cases, ... nearly 12,000 twin pairs. , The study appears in ... a journal of the American Medical Association. , Margaret ... Letters, Arts, and Sciences, led an international team of ...
Cached Biology News:Rewind, please: Nature paper shows that cell division is reversible 2AIDS drug from sunflowers 2AIDS drug from sunflowers 3Alzheimer's found to be mostly genetic 2
...
Lyophilized. Purity: ≥90% by electrophoresis. Reconstitute in 0.3% NaCl. Prepared from serum that has been shown by certified tests to be negative for HBsAg and for HIV and HCV antibodies. ...
Porcine Pulmonary Artery Endothelial Cells (PPAEC) (>500,000 cells)...
PP2B-Abeta (C-20)...
Biology Products: