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:1/22/2015)... TORONTO , Jan. 13, 2015 /PRNewswire/ - Today, FindBiometrics, the ... announced the launch of its new website design. ... in its infancy", says Peter O,Neill , founder and ... ever, the industry needs involvement from the key players on ...
(Date:1/22/2015)... man-made form of insulin delivered by nasal spray may ... with mild cognitive impairment and Alzheimer,s disease dementia, according ... Forest Baptist Medical Center. The study,s subjects ... (MCI) or mild to moderate Alzheimer,s dementia (AD). Those ...
(Date:1/22/2015)... , January 22, 2015 , ... tenth year  The European Patent Office to present a ... Two British nominations to be featured: Christofer Toumazou and ... featuring former finalists and winners of the Award   ...
Breaking Biology News(10 mins):Identity Industry Leading Publication Debuts New Look As Biometrics Hit Mainstream 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 3
... gene mutations can reveal a great deal about our ... with clinical expectations. Australian scientists acknowledge such a ... which examines people with ,Autosomal Dominant Hyper IgE Syndrome,. ... the STAT3 gene. This makes patients slightly more susceptible ...
... Age, as the world began to warm, a swath of ... pulse of biological productivity 14,000 years ago, this stretch of ... creatures, who thrived in large numbers until the productivity endedas ... Researchers have hypothesized that iron sparked this surge of ...
... shelf in the western Weddell Sea in 1995 has resulted ... less than two decades. As reported by biologists from ... Research in the cover story of the current issue of ... have been the prime beneficiaries of the disappearance of the ...
Cached Biology News:Surprise finding reveals how adaptive our immune systems can be 2Scientists solve a 14,000-year-old ocean mystery 2Scientists solve a 14,000-year-old ocean mystery 3Glass sponges take advantage of retreating Antarctic ice shelves 2Glass sponges take advantage of retreating Antarctic ice shelves 3
(Date:3/2/2015)...  Asterias Biotherapeutics, Inc. (NYSE MKT: AST), a leading ... today announced that it will release fourth quarter and ... March 10, 2015 after the close of the U.S. ... and webcast on Tuesday, March 10, 2015 at 4:30 ... results and recent corporate developments. For both ...
(Date:3/2/2015)... Outside GC, the leading provider of on-demand, in-house ... Casey as a member of the firm, further strengthening ... , Debbie has spent over 20 years in the ... North America in both legal and business capacities. ... Outside GC’s growing list of healthcare clients, with a ...
(Date:2/27/2015)... and SUMMERLAND, British Columbia , Feb. ... XON ), a leader in synthetic biology, today ... Okanagan Specialty Fruits (OSF), the pioneering agricultural company ... world,s first non-browning apple. Through the acquisition, Intrexon expands ... is more appetizing and convenient for consumers while providing ...
(Date:2/27/2015)... Nova Scotia (PRWEB) February 27, 2015 ... stage vaccine and immunotherapy company, today announced that ... its application for Fast Track designation and Phase ... vaccines, in conjunction with the mutual co-development agreement ... previously obtained Fast Track designation for the DPX-Survivac. ...
Breaking Biology Technology:Asterias Biotherapeutics to Report Fourth Quarter and Full Year 2014 Results on March 10, 2015 2Outside GC Expands Healthcare Team 2Intrexon to Acquire Okanagan Specialty Fruits 2Intrexon to Acquire Okanagan Specialty Fruits 3Intrexon to Acquire Okanagan Specialty Fruits 4Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 2Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 3
... find readily available source code on the Internet that can ... Using open source software (OSS) in this manner can be ... the legal ramifications that can arise are not so simple. ... "free" software in the usual sense of the word. OSS ...
... - If wireless keeps growing at its present rate ... work done, says a wireless channel manager for Cisco ... recent Accelerate Madison program, saying the surging interest ... over the next few years. With costs falling and enhancements ...
... DEMOfall, held in Newport Beach, Calif., last week, the conference ... companies. Two days to see great new products, meet entrepreneurs ... these good folks head home with a stack of business ... the most part the DEMO conference is over until February ...
Cached Biology Technology:Open source software -- Managing the legal risks 2Open source software -- Managing the legal risks 3Cisco manager touts wireless advantages 2Now the real work begins 2Now the real work begins 3