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:7/24/2014)... scientists are making progress in devising suitable means ... relies on quantum dotsa kind of artificial atom, ... new study demonstrates that changing the coupling of ... impulses can help better control them. This has ... quantum information units, which would produce faster quantum ...
(Date:7/24/2014)... Your cell phone may stay ... battery storage capacity. , New research indicates that ... created at Lawrence Livermore National Laboratory ... carbon components will perform as electrodes. , The ... need for higher-performance batteries. Several key characteristics of ...
(Date:7/24/2014)... , July 24, 2014  Neogen Corporation (Nasdaq: ... future forecasts of its potential revenue from new rodenticide ... to investors and analysts on July 22, 2014, Neogen,s ... analysts regarding this research. "It was my ... about the potential of a new type of rodenticide, ...
(Date:7/24/2014)... BETHESDA, Md. , July 24, 2014  Spherix ... to the fostering and monetization of intellectual property, today ... for the period ending June 30, 2014 on Monday, ... conference call at 10 a.m. ET on Monday, August ... to be led by the company,s CEO, Anthony ...
Breaking Biology Technology:Getting More Life out of Lithium-ion Batteries 2Neogen comments on SenesTech 2Spherix Schedules Shareholder Update Call 2
... ON, July 3 /PRNewswire-FirstCall/ - Vasogen Inc.,(NASDAQ: VSGN ... additional,restructuring plans to further reduce its cash burn ... strategic alternatives that may,include potential acquisitions and mergers. ... completed an extensive review of its VP,series of ...
... NEW BRUNSWICK, N.J., July 3 Senesco,Technologies, Inc. ... announced today,that it has contracted with Polyplus-transfection (Illkirch, ... of Senesco,s,combination therapy of siRNA against Factor 5A ... Senesco has previously reported positive preclinical in vivo ...
... 3 Antigen Discovery Inc. ("ADI",formerly ImmPORT Therapeutics ... advanced genomics and proteomics tools,announced today that the ... the,National Institute of Allergy and Infectious Diseases (NIAID) ... $3 million grant will,fund efforts to further develop ...
Cached Biology Technology:Vasogen Provides Corporate Update 2Senesco Signs a Supply Agreement for Polyplus-transfection's Delivery System 2Senesco Signs a Supply Agreement for Polyplus-transfection's Delivery System 3Senesco Signs a Supply Agreement for Polyplus-transfection's Delivery System 4Antigen Discovery Inc. Awarded a SBIR Phase II Grant to Commercialize Novel Antigens for Serodiagnostic Products and Vaccine Development 2
(Date:7/24/2014)... native animal species for food or commercial food sale, ... in the decline of many species of primates and ... more than half of the species being consumed are ... surveying not only the meat made available for sale ... forest by hunters and brought to villages for consumption, ...
(Date:7/24/2014)... a smog-free Los Angeles, where electric cars ply silent ... on heat from beneath the earth, from howling winds ... Stanford study finds that it is technically and economically ... powered by clean, renewable energy. Published in Energy ... inexpensive and reliable energy supply in California that could ...
(Date:7/24/2014)... multi-institutional team of researchers has developed a new nanoscale ... noninvasive method for assessing the function and properties of ... better diagnosis and treatment of gut diseases. ... bowel syndrome and inflammatory bowel disease all occur in ... in patients with diseases such as diabetes and Parkinson,s. ...
Breaking Biology News(10 mins):Stanford study shows how to power California with wind, water and sun 2Stanford study shows how to power California with wind, water and sun 3Stanford study shows how to power California with wind, water and sun 4New imaging agent provides better picture of the gut 2
... low levels of particulate air pollution may increase the ... suggest current exposure standards could be insufficient to protect ... public is exposed to ambient air pollution at the ... suggesting a potentially large public health impact," said Lynda ...
... People with highly developed emotional sensibilities are better at ... the Journal of Consumer Research. "Consumers who understand ... such as health decisions and product choices," explain the ... Childers (University of Kentucky). "A person can know a ...
... Medical Research, led by Jos Luis Milln, Ph.D., have ... replacement therapy to prevent hypophosphatasia (HPP), a primary skeletal ... foundation for future clinical trials for HPP patients. ... that most commonly results from a lack of vitamin ...
Cached Biology News:Even low levels of air pollution may pose stroke risk 2Potential therapy discovered for hypophosphatasia, a congenital form of rickets 2
Request Info...
... Quickly, effectively seals labware. Waterproof, moisture-proof ... anhydrous materials. Can be folded repeatedly ... rupturing. Stretched lengthwise at 21C (70F), ... when tension is removed, film only ...
...
Normal human AB serum, pooled...
Biology Products: