Navigation Links
Berkeley Lab researchers make first perovskite-based superlens for the infrared
Date:3/29/2011

Superlenses earned their superlative by being able to capture the "evanescent" light waves that blossom close to an illuminated surface and never travel far enough to be "seen" by a conventional lens. Superlenses hold enormous potential in a range of applications, depending upon the form of light they capture, but their use has been limited because most have been made from elaborate artificial constructs known as metamaterials. The unique optical properties of metamaterials, which include the ability to bend light backwards - a property known as negative refraction - arise from their structure rather than their chemical composition. However, metamaterials can be difficult to fabricate and tend to absorb a relatively high percentage of photons that would otherwise be available for imaging.

Now, researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) have fabricated a superlens from perovskite oxides that are simpler and easier to fabricate than metamaterials, and are ideal for capturing light in the mid-infrared range, which opens the door to highly sensitive biomedical detection and imaging. It is also possible that the superlensing effect can be selectively turned on/off, which would open the door to highly dense data writing and storage.

"We have demonstrated a superlens for electric evanescent fields with low absorption losses using perovskites in the mid-infrared regime," says Ramamoorthy Ramesh, a materials scientist with Berkeley Lab's Materials Sciences Division, who led this research. "Spectral studies of the lateral and vertical distributions of evanescent waves around the image plane of our lens show that we have achieved an imaging resolution of one micrometer, about one-fourteenth of the working wavelength."

Ramesh, who also holds appointments with the University of California Berkeley's Department of Materials Science and Engineering and the Department of Physics, is
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Nanyang Technological University and University of California, Berkeley pursue research alliance
2. Berkeley Lab lends expertise to India to promote energy efficiency
3. Berkeley Lab researchers participate in Homeland Security study of subway airflow
4. Berkeley scientists find new way to get physical in the fight against cancer
5. Berkeley Lab to build DOE advanced biofuels user facility
6. Berkeley Lab researchers illuminate laminins role in cancer formation
7. Getting organized: Berkeley Lab study shows how breast cell communities organize into breast tissue
8. NC State researchers get to root of parasite genome
9. Researchers find animal with ability to survive climate change
10. Researchers find an essential gene for forming ears of corn
11. Researchers note differences between people and animals on calorie restriction
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Berkeley Lab researchers make first perovskite-based superlens for the infrared
(Date:7/11/2014)... A new report from the Wildlife Conservation Society ... only help economically valuable species such as lobster, ... also help re-colonize nearby reef areas. , The ... a systematic review of research literature from no-take ... by Dr. Craig Dahlgren, a recognized expert in ...
(Date:7/11/2014)... Mills Canyon fire started near the City of Entiat ... local resources, the fire quickly grew to over 1,000 ... of the fire is under investigation by the Washington ... working with existing local resources in developing fire control ... Service (USFS), Washington State Department of Natural Resources, (WA ...
(Date:7/11/2014)... available in German . ... that uses the refraction of X-rays through a specimen ... with this method are often of much higher quality ... team of Prof. Franz Pfeiffer are particularly interested in ... including X-ray phase-contrast imaging. One main goal is ...
Breaking Biology News(10 mins):Belize's lobster, conch, and fish populations rebuild in no-take zones 2New simple setup for X-ray phase contrast 2
... the planet. They thrive in almost every known environment, ... that provide the capabilities essential for survival. These genetic ... mutation and exchange of genes and other bits of ... which then becomes an intrinsic part of the genome. ...
... URBANA - When University of Illinois researchers surveyed over 3,500 ... accurately, and overweight and obese men were more likely to ... because the first step in dealing with a weight problem ... U of I professor of food science and human nutrition. ...
... Most medical imaging equipment is not designed with overweight and ... be exposed to higher levels of radiation during routine X-ray ... Polytechnic Institute is the first to calculate exactly how much ... results show the internal organs of obese men receive 62 ...
Cached Biology News:Study shows unified process of evolution in bacteria and sexual eukaryotes 2Study shows unified process of evolution in bacteria and sexual eukaryotes 3Misperception of weight is an important barrier to weight loss 2Obese patients face higher radiation exposure from CT scans -- but new technology can help 2
(Date:7/10/2014)... , July 10, 2014 On ... Dmitry Medvedev , presented Russia,s ... BIOCAD . The Company is developing a unique project ... project BIOCAD develops a number of innovative drugs based ... diseases. The ceremony took place at the International Exhibition ...
(Date:7/10/2014)... 2014 /PRNewswire-iReach/ -- Tute Genomics, the leader ... an agreement with Lineagen, Inc., to provide ... Dx PLUS.  Lineagen, focused on the ... currently offers FirstStep Dx PLUS, a ... by healthcare providers as a first-line genetic ...
(Date:7/10/2014)... THOUSAND OAKS, Calif., July 10, 2014   Ceres, ... biotechnology and seed company, announced today financial results for ... an update on its business. Ceres reported ... progress in product performance this growing season in Brazil, ... that affected the company,s sorghum evaluation areas for part ...
(Date:7/10/2014)... Adelaide research may help in the fight against terrorism ... tiny quantities of explosives with the use of light ... Sensors and Actuators B: Chemical , the researchers ... explosives in concentrations as low as 6.3 ppm (parts ... a few minutes. , "Traditionally explosives detection has involved ...
Breaking Biology Technology:Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Detecting trace amounts of explosives with light 2
... - NovaScan, an early-stage medical imaging company developing what ... of breast cancer, had to bypass angel tax credits from ... for its emerging technology. , ,The company instead has raised ... a state loan, and grants. , ,According to CEO Larry ...
... rural Wisconsin, one company is earning their bread and ... Networks, Inc. , a global satellite communications provider, has ... , a satellite-based broadband access provider. , ,IsoTropic operates ... set on 21 acres in rural Wisconsin, and it ...
... Last week, the nation marked the five-year anniversary of ... restrictions have unquestionably set back the progress of this ... Congress passed legislation that would have lifted President Bush's ... ones are suffering from a wide range of debilitating ...
Cached Biology Technology:NovaScan decides against tax credits 2Rural company works to improve broadband 2Stem cell research holds the promise for tomorrow 2Stem cell research holds the promise for tomorrow 3
... is the only PCR system that ensures ... time. It provides accuracy, consistency, and dependability ... the property of the DNA templates. This ... a unique blend of thermostable enzymes that ...
Special grade: for molecular biology Density: 1.000 g/mL (20 C)...
... to meet the needs of ... component-free medium supports fast cell ... densities, while maintaining high cell ... production using the Baculovirus Expression ...
... This CLS number ... number, created to easily ... If showing no availability ... the old Sigma-Aldrich number ...
Biology Products: