Navigation Links
Scientists create artificial mini 'black hole'
Date:6/3/2010

Chinese researchers have successfully built an electromagnetic absorbing device for microwave frequencies. The device, made of a thin cylinder comprising 60 concentric rings of metamaterials, is capable of absorbing microwave radiation, and has been compared to an astrophysical black hole (which, in space, soaks up matter and light).

The research published today, Thursday, 3 June, in New Journal of Physics (co-owned by the Institute of Physics and German Physical Society), shows how the researchers utilised the special properties of metamaterials, a class of ordered composites which can distort light and other waves.

Qiang Cheng and Tie Jun Cui of the State Key Laboratory of Millimeter Waves at Southeast University in Nanjing, China, designed and fabricated their absorbing device, officially called an "omnidirectional electromagnetic absorber", using 60 strips of circuit board arranged in concentric layers coated in copper. Each layer is imprinted with alternating patterns, which resonate or don't resonate in electromagnetic waves.

The designed device can trap and absorb electromagnetic waves coming from all directions by spiraling the radiation inwards and converting its energy into heat with an absorption rate of 99%. Hence it behaves like an "electromagnetic black body" or an "electromagnetic black hole".

At the moment, the device only works with microwaves, but the researchers are planning to develop a black hole for visible light next.

The current results could find some applications in microwaves. As the researchers write, "The good agreement between theoretical and experimental results has shown the excellent ability for metamaterials as the candidate to construct artificial omnidirectional absorbing devices.

"Since the lossy core can transfer electromagnetic energies into heat energies, we expect that the proposed device could find important applications in thermal emitting and electroma
'/>"/>

Contact: Lena Weber
lena.weber@iop.org
44-207-470-4896
Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Gladstone scientists uncover potential mechanism of memory loss in Alzheimers disease
2. Three Studies by Independent Scientists Highlighting Pressure Cycling Technology (PCT) to be Presented this Week at the British Mass Spectrometry Societys 29th Annual Meeting
3. Social Network for Scientists Marks Ten Years Online
4. Scientists synthesize memory in yeast cells
5. Scientists synthesize memory in yeast cells
6. University of Leicester scientists discover technique to help friendly bacteria
7. Scientists discover how cancer may take hold
8. Yale scientists make 2 giant steps in advancement of quantum computing
9. New Scientists Boost Disease-based Research at Boston Biomedical Research Institute
10. Scientists say sabercat bit like a pussycat
11. New Corporate Website Launched - Focus on Life Scientists, Flow Cytometrists, & Clinicians
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/20/2014)... Texas (PRWEB) October 20, 2014 ... announced that a team from Iowa State University won ... design contest. Using a Convey HC-2ex, the team’s solution ... 14 times faster than the second place finisher. , ... world embarked upon the month long challenge, using a ...
(Date:10/20/2014)... -- , A major pan-European survey into ... of care has revealed changing trends in many important ... provision of healthcare services across the continent. The results ... Gastroenterology (UEG), have been announced today and led to ... burden of GI disorders across Europe ...
(Date:10/20/2014)... OncLive® is pleased ... at Thomas Jefferson University has joined its Strategic ... Alliance Partnership program, the Sidney Kimmel Cancer Center ... awareness of the Center’s cutting-edge research programs, comprehensive ... and other health care professionals from the Sidney ...
(Date:10/19/2014)... October 19, 2014 The Latin American ... market in Latin America with analysis and forecast of ... 2013, and is expected to reach $2,366.8 million by ... 2018. , Browse through the TOC of the Latin ... of the in-depth analysis provided. It also provides a ...
Breaking Biology Technology:Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3
... manufacturing of circuits at nanoscopic scale for integrated devices ... material science and technology. The significant reduction achieved in ... how they behave precisely when the systems are of ... scale at the same time has enabled researchers to ...
... Makes Secure Case Collaboration on Titan Spine,s ... for Surgeons, DURANGO, Colo., Oct. 8 ... platforms SpineConnect.com and TraumaConnect.com,announced today it will be ... collaboration strategy for its surgeons to,efficiently expedite their ...
... Oct. 8 CJPS Enterprises, LLC, (http://www.CJPS-Enterprises.com ... Sciences,Pipeline (http://www.MichiganPipeline.com ) is announcing a ... funding for their business, or looking to,invest ... Some of the existing resources available on ...
Cached Biology Technology:A new material could act as a nanofridge for microchips 2Titan Spine Teams Up With Syndicom, Inc. to Utilize Internationally Recognized SpineConnect Collaboration Platform 2The Michigan Life Sciences Pipeline Announces 'The Funding Place(TM)' and Other Resources to Connect Investors and Startups 2
(Date:10/14/2014)... – Scientists have sequenced the house fly genome for ... might expect from an insect that thrives in pathogen-rich ... Oct. 14 in the journal Genome Biology , ... and of how flies quickly adapt to resist insecticides, ... house flies (Musca domestica) carry and transmit more than ...
(Date:10/14/2014)... A Mount Sinai-led research team has discovered a new kind ... or a cell that lines liver blood vessels, according to ... Reports . The existence of such a cell type contradicts ... the embryo, and may hold clues to origins of, and ... develop from a single cell into a complex being made ...
(Date:10/14/2014)... October 14, 2014 – Scientists from The Scripps Research ... National Institutes of Health (NIH) to lead an investigation ... fever disease in Africa. The study aims to understand ... patients die, while others survive the inflection. , ... basic mechanism of how Lassa fever virus causes disease ...
Breaking Biology News(10 mins):House fly genome reveals expanded immune system 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 3Scripps Research Institute team receives $6.6 million to investigate deadly Lassa virus 2
... Helicobacter pylori , a bacterium found in about 50% of ... cancer. In an article for F1000 Medicine Reports , Seiji ... pylori infections Infection by the H. pylori ... do not have symptoms, but many develop problems including stomach ulcers. ...
... the main vector of malaria have found ... act triggers two enzymes to form a network of ... this protein barrier, the researchers found, is part of ... commensal gut bacteria to grow without activating mosquito immune ...
... asteroid 1999 RQ36, a chunk of rock and dust about 1,900 ... was born, and perhaps, shed light on how life began. It ... capsule from before the birth of our solar system," said Bill ... of the leaders of Goddard,s effort to propose a mission called ...
Cached Biology News:Preventing gastric cancer with antibiotics 2Barrier in mosquito midgut protects invading pathogens 2Proposed mission would return sample from asteroid 'time capsule' 2Proposed mission would return sample from asteroid 'time capsule' 3Proposed mission would return sample from asteroid 'time capsule' 4Proposed mission would return sample from asteroid 'time capsule' 5
... Error-free cloning of BAC (100+kb), fosmid (40kb), ... insert stability than any othe BAC vector. ... high yields and easy recombinant DNA purification. ... transcription-free (pSMART VC) vectors for the highest ...
Anti-Goat HRP-DAB Cell & Tissue Staining Kit...
... The Light Diagnostics Cytomegalovirus (CMV) pp65 Antigenemia ... qualitative identification of lower matrix protein pp65 ... Kit Components: ... One bottle containing 220 mL of buffered ...
... cell culture systems provide an ... cells for staining and imaging. ... gaskets preassembled with standard optical-quality ... The entire system is provided ...
Biology Products: