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)... MENLO PARK, Calif. , Oct. 20, 2014 ... announced today that the Company has signed a ... Institute of Regenerative Medicine (CIRM), effective October 1, ... of Clinical Development payments and the release of ... $14.3 million CIRM grant award for clinical development ...
(Date:10/20/2014)... PLAINSBORO, N.J. (PRWEB) October 20, 2014 ... that the Sidney Kimmel Cancer Center at Thomas ... program. , Through the Strategic Alliance Partnership ... and OncLive will collaborate to raise awareness of ... cancer treatment, and other projects. Clinicians and other ...
(Date:10/19/2014)... Mass. , Oct. 19, 2014 NextCODE Health, ... the whole genome in real time, today announced the launch ... NextCODE Exchange , at the American Society of Human ... . To learn more, sign up and apply for free ... its unique features and benefits can be viewed here ...
(Date:10/19/2014)... 2014 The Asian Orthopedic braces and support ... with analysis and forecast of revenue. The Orthopedic braces and ... around $416.5 million by 2018, at a developing CAGR of ... of the Asian Orthopedic braces and support systems market, to ... provides a glimpse of the segmentation of orthopedic braces and ...
Breaking Biology Technology:Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 2Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 4Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 3The Asian Orthopedic braces and support systems market is estimated to grow to around $416.5 million by 2018 - New Report by MicroMarket Monitor 2The Asian Orthopedic braces and support systems market is estimated to grow to around $416.5 million by 2018 - New Report by MicroMarket Monitor 3The Asian Orthopedic braces and support systems market is estimated to grow to around $416.5 million by 2018 - New Report by MicroMarket Monitor 4
... 28 /PRNewswire-Asia-FirstCall/ -- NeoStem, Inc. (NYSE Amex:, NBS ) ("NeoStem" or ... China , announced that the Company,s Director,of Clinical Affairs and Apheresis, ... the American Society for Apheresis (ASFA) 2010 Annual,Meeting on Friday, May ... , ...
... ,, NEW YORK , ... ) ("NeoStem" or the "Company"), an international biopharmaceutical,company with operations ... Company has,been invited to present its adult stem cell technologies ... in New York City on, June 1, 2010 ...
... producer to distribute Hamilton Thorne,s laser products in North America , ... TSX VENTURE: HTL , ... TORONTO , May 27 /PRNewswire-FirstCall/ - Hamilton ... for the stem cell research and fertility clinic markets, today announces a vendor ...
Cached Biology Technology:NeoStem Selected to Present at American Society for Apheresis 2NeoStem Selected to Present at American Society for Apheresis 3NeoStem Selected to Present at American Society for Apheresis 4NeoStem's Advanced Adult Stem Cell Technology to be Featured at Upcoming Conference 2NeoStem's Advanced Adult Stem Cell Technology to be Featured at Upcoming Conference 3NeoStem's Advanced Adult Stem Cell Technology to be Featured at Upcoming Conference 4NeoStem's Advanced Adult Stem Cell Technology to be Featured at Upcoming Conference 5Hamilton Thorne partners with Leica Microsystems 2Hamilton Thorne partners with Leica Microsystems 3Hamilton Thorne partners with Leica Microsystems 4
(Date:10/15/2014)... 44th Rosenstiel Award for Distinguished Work in Biomedical Science ... mechanisms of genomic instability and its implications for the ... alumnus to win the Rosenstiel Award; the first, Rod ... is the Charles A. Janeway Professor of Pediatrics and ... investigator at the Howard Hughes Medical Institute at Boston ...
(Date:10/14/2014)... A new study published in Cancer Research ... liver and colon cancers—can promote the development of skin ... proliferation and survival of sun-damaged skin cells. , Previously ... seven proteins called sirtuins that help regulate genomic stability ... aging. SIRT6 helps repair DNA damage, which can lead ...
(Date:10/14/2014)... is how to produce enough food to feed the ... Agriculture Organization of the United Nations predicts that food ... to feed a growing global population, and plants are ... production. Plants—grains, cereals, fruits, vegetables, and more—feed humans ... must tap into our knowledge of how plants work ...
Breaking Biology News(10 mins):Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2Building a bridge from basic botany to applied agriculture 2Building a bridge from basic botany to applied agriculture 3
... the John Innes Centre have provided a new solution to an ... their parents. In a study to be published online next week ... researchers found a type of genetic "noise" caused by a surprising ... in closely related species. They found that when species hybridise, some ...
... a first-of-its kind map that details the height of the ... canopy maps, the new map is the first that spans ... map, based on data collected by NASA,s ICESat, Terra, and ... much carbon the world,s forests store and how fast that ...
... This press release is available in French . ... a lower risk of developing cancer, according to a study carried ... Centre hospitalier de l,Universit de Montral, and McGill University. The findings, ... show that male eczema sufferers had a lower risk of lung ...
Cached Biology News:What causes hybrid vigor? 2First-of-its-kind map details the height of the globe's forests 2Asthma and eczema sufferers have a lower risk of developing a cancer 2
Image Acquisition and documentation system for fluorescent and non-fluorescent gels, membranes, blots, film, plates and assays...
... features a 4.1 mega pixel digital color ... TLC color images., The cabinet features ... longwave UV tubes positioned on two sides ... fluorescence studies , Interior overhead white ...
Rabbit Polyclonal antibody to Perilipin Applications: This antibody is useful for Western blot anlaysis where a band at ~60 kDa is seen....
... thermoactive designer enzyme that enables RT-PCR ... PCR enzyme allows reverse transcription and ... elevated temperatures (65C), which helps to ... and results in highly stringent, accurate ...
Biology Products: