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:11/22/2014)... Colo. (PRWEB) November 21, 2014 ... proprietary cloud based analytics and scientific testing methodologies relating ... commitment for a $750,000 line of credit from an ... extremely pleased to have secured this commitment from one ... Executive Officer of CannLabs. “This capital will help accelerate ...
(Date:11/22/2014)... November 22, 2014 The “Chiral ... Preparative), by Material (Metal, Glass, Plastic), by Application ... SFC] - Forecast to 2018” analyses and studies ... in North America, Europe, Asia, and Rest of ... and 15 figures spread through 135 pages and ...
(Date:11/22/2014)... --   , ... KLOX    Mariano Rodriguez ... bestellt    KLOX ist bestens vorbereitet, ... Behandlungssystems zur Wundheilung zu beginnen    , ... erfreut, die folgenden personellen Veränderungen anzukündigen: ...
(Date:11/21/2014)... USA (PRWEB) November 19, 2014 The ... our lives was shared with more than 200 primary ... postgraduate students from the University of Otago Physics Department ... . The Otago students, members of the university’s OSA/SPIE ... Zealand in early September, giving children from small, rural ...
Breaking Biology Technology:CannLabs Secures $750,000 Line Of Credit 2Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 2Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 3Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 4Chiral Chromatography Columns Market worth $87.8 Million by 2018 - New Research Report by MarketsandMarkets 5KLOX Technologies meldet Neubesetzung von Führungspositionen 2KLOX Technologies meldet Neubesetzung von Führungspositionen 3KLOX Technologies meldet Neubesetzung von Führungspositionen 4KLOX Technologies meldet Neubesetzung von Führungspositionen 5Optics and photonics outreach programs share science, spark fascination with light 2Optics and photonics outreach programs share science, spark fascination with light 3
... 7, 2011 IBM,s (NYSE: IBM ) announcement ... seek out and destroy drug-resistant bacteria caps off a ... Earlier this week, scientists from IBM Research ... nanoparticles that are physically attracted like magnets to MRSA ...
... 7, 2011 Wound Management Technologies, Inc., ( OTCQB: ... advanced wound care solutions, today announced that its Pharma ... within key international markets, has received new orders for ... In Lebanon, the subsidiary just completed a $50,000 order ...
... 5, 2011 A new drug is effective in preventing ... to the disease. These patients with basal cell nevus ... locally invasive or metastatic, according to a discussion presented by ... annual meeting of the American Association for Cancer Research (AACR). ...
Cached Biology Technology:IBM's MRSA Infection-Fighting Nanotechnology Caps Century of Healthcare Innovation 2IBM's MRSA Infection-Fighting Nanotechnology Caps Century of Healthcare Innovation 3IBM's MRSA Infection-Fighting Nanotechnology Caps Century of Healthcare Innovation 4WNDM Secures Additional International Sales; $150 K in New Orders for 2011 2WNDM Secures Additional International Sales; $150 K in New Orders for 2011 3New drug is effective against the most common form of skin cancer 2
(Date:11/6/2014)... groundbreaking paper from a team of Florida State University ... plants could adapt to and survive environmental swings such ... the latest issue of the journal The Plant ... of DNA and proteins) is organized in a cell ... genes are turned on and others are turned off. ...
(Date:11/6/2014)... 2014 - Insilico Medicine, Inc, a Baltimore-based bioinformatics ... related diseases announced a research collaboration with the ... Oncology, Inc (OTC: CSBR). , "There are many ... but Champions Oncology,s TumorGraft technology is unique in ... regimen experimentally generating vast amounts of valuable data. ...
(Date:11/5/2014)... de Janeiro, Brazil -Individuals show great diversity in their ... males and females greatly differ in their perceptual evaluation ... of smell tests. , Sex differences in ... behaviors and may be connected to one,s perception of ... emotions. Thus, women,s olfactory superiority has been suggested to ...
Breaking Biology News(10 mins):Maize analysis yields whole new world of genetic science 2Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2The female nose always knows: Do women have more olfactory neurons? 2
... University of Michigan and Shanghai Jiao Tong University ... fund renewable energy and biomedical research projects involving ... the renewable-energy program is to develop new technologies ... on climate change. The biomedical collaboration will spur ...
... University Park, Pa. -- A mass spectrometer ... history of the Earth system will join other ... Laboratory, thanks to a $724,000 grant through the ... Fantle, assistant professor of geoscience, is the principal ...
... NC If scientists have identified some two million ... the tree of life that unites them all? A ... state-of-the-art knowledge about the evolutionary relationships among living things. ... scientists store, share, and study evolutionary trees was ...
Cached Biology News:U-M joins with Chinese university to jointly fund renewable energy and biomedical research projects 2New aid to biogeochemical research slated for materials characterization lab 2Database gives access to the latest findings about the tree of life 2Database gives access to the latest findings about the tree of life 3
RNA polymerase sigma 70 Immunogen: Recombinant, full length protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Anti-Dardarin Immunogen: Synthetic peptide from rat LRRK2. Available Date: 38814...
Rat monoclonal to UGGT ( Abpromise for all tested applications)....
... Rabbit polyclonal to MSY2/YBOX2 ( ... Antigen: Synthetic ... to the C-terminus of Human MSY2/YBOX2. ... is proprietary) (Peptide ...
Biology Products: