Navigation Links
Strange new twist: Berkeley researchers discover Möbius symmetry in metamaterials
Date:12/20/2010

trimers displayed Mbius C3 symmetry meaning Mbius cyclic symmetry through three rotations of 120 degrees. The Mbius twists result from a change in the signs of the electromagnetic coupling constants between the constituent meta-atoms.

"The topological Mbius symmetry we found in our meta-molecule trimers is a new symmetry not found in naturally occurring materials or molecules." Zhang says. "Since the coupling constants of metamolecules can be arbitrarily varied from positive to negative without any constraints, the number of Mbius twists we can introduce are unlimited. This means that topological structures that have thus far been limited to mathematical imagination can now be realized using metamolecules of different designs."

Details on this discovery have been published in the journal Physical Review Letters, in a paper titled "Optical Mbius Symmetry in Metamaterials." Co-authoring the paper with Zhang were Chih-Wei Chang, Ming Liu, Sunghyun Nam, Shuang Zhang, Yongmin Liu and Guy Bartal.

Xiang Zhang is a principal investigator with Berkeley Lab's Materials Sciences Division and the Ernest S. Kuh Endowed Chaired Professor at UC Berkeley, where he directs the Center for Scalable and Integrated NanoManufacturing (SINAM), a National Science Foundation Nano-scale Science and Engineering Center.

In science, symmetry is defined as a system feature or property that is preserved when the system undergoes a change. This is one of the most fundamental and crucial concepts in science, underpinning such physical phenomena as the conservation laws and selection rules that govern the transition of a system from one state to another. Symmetry also dictates chemical reactions and drives a number of important scientific tools, including crystallography and spectroscopy.

While some symmetries, such as spatial geometries, are easily observed, others, such as optical symmetries, may be hidden. A powerful investigative tool for uncover
'/>"/>

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

Page: 1 2 3 4

Related biology technology :

1. Berkeley Law Survey Challenges Popular Beliefs About Hi-tech Startup Patents
2. Grove Gift Launches Translational Medicine Program at UCSF & UC Berkeley
3. Berkeley Lab scientists create molecular paper
4. LS9, Inc., U.C Berkeley, and JBEI Make Major Breakthrough in Cellulosic Fuels Production
5. Berkeley researchers take the lead out of piezoelectrics
6. Berkeley researchers find new route to nano self-assembly
7. DOE to Explore Scientific Cloud Computing at Argonne, Lawrence Berkeley National Laboratories
8. Rice researchers take molecules temperature
9. Researchers create new high-performance fiber
10. Dutch royal honors for Manchester researchers
11. Virtual reality helps researchers track how brain responds to surroundings
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Strange new twist: Berkeley researchers discover Möbius symmetry in metamaterials
(Date:9/17/2014)... GLASGOW, Scotland , September 17, 2014 ... a new mode of action from a ... a decade  MGB Biopharma, a ... of anti-infectives, announces today that it has ... of its lead antibacterial, MGB-BP-3, against a ...
(Date:9/16/2014)... September 16, 2014 “Nature has developed, ... features that we desire in optical design,” said Joseph ... State University. “As we explore surfaces and structures at ... lessons were presented in San Diego in August during ... in Nature ” chaired by Shaw and Rongguang Liang ...
(Date:9/16/2014)... WASHINGTON, D.C., September 16, 2014 --The emerging field ... portable to the next level, enabling the construction ... highly efficient devices, individual molecules would take on ... and transistors. , A team of researchers from ... potential candidate for use in small-scale electronics: a ...
(Date:9/16/2014)... 16, 2014 Cardioxyl Pharmaceuticals, Inc. ... been shown to be effective in animal models following ... to intravenous infusions that could pave the way for ... presented yesterday at the Heart Failure Society of America,s ... Las Vegas . The research, ...
Breaking Biology Technology:MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 2MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 3MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 6MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 7Nature’s designs inspire research into new light-based technologies 2Nature’s designs inspire research into new light-based technologies 3Nature’s designs inspire research into new light-based technologies 4Nature’s designs inspire research into new light-based technologies 5The future face of molecular electronics 2Cardioxyl Presents Oral Heart Failure Treatment Data For Its Experimental HNO Prodrug At HFSA 18th Annual Scientific Meeting 2
... Summary: Genmab Reports Results for the First Three Months of ... today results for the three month period ended March 31, ... revenues were DKK 167 million (approx. USD 36 million) for ... Genmab recognized,revenues of DKK 80 million (approx. USD 17 million)., ...
... Md., May 28 Novavax, Inc. (Nasdaq:,NVAX) a clinical-stage ... Chief Executive Officer, will be presenting at the,FBR Capital ... on,May 29, 2008 at The Grand Hyatt Hotel in ... company,s strategy, research and development progress. A,link to the ...
... NanoLogix, Inc. (Pink,Sheets: NNLX) a nano-biotechnology company ... personnel will showcase company technology at booth 1304 ... June 1-5 2008. The ASM,meeting is the world,s ... Dr. Sergey Gazenko and CEO Bret Barnhizer.,Exhibition information ...
Cached Biology Technology:Genmab Announces 2008 First Quarter Results 2Genmab Announces 2008 First Quarter Results 3Genmab Announces 2008 First Quarter Results 4NanoLogix Inc. to Present at The American Society for Microbiology (ASM) General Meeting in Boston; Announces Product Line and Provides Operations Update 2
(Date:9/17/2014)... on a Carnegie expedition in Australia,s Great Barrier Reef ... since the mid-1970s. The scientists suggest that ocean acidification ... slowdown. , In a quest for historical context ... current measurements of the growth rate of a section ... more than 30 years ago. Their work is published ...
(Date:9/17/2014)... of bacterial infections, including MRSA and MSSA could ... bumps that mimic the scaly surface of shark ... access journal Antimicrobial Resistance and Infection Control ... materials prevented the spread of human disease bacteria ... Sharklet, is an arrangement of ridges formulated to ...
(Date:9/16/2014)... Hopkins neuroscientists have discovered the "molecular brakes" that time ... cochleas of mice. These "hair cells" translate sound waves ... and are interpreted as sounds. If the arrangement of ... A summary of the research will be published in ... , "The proteins Hey1 and Hey2 act as brakes ...
Breaking Biology News(10 mins):Coral growth rate plummets in 30-year comparison 2Sharks' skin has teeth in the fight against hospital superbugs 2Hey1 and Hey2 ensure inner ear 'hair cells' are made at the right time, in the right place 2
... URBANA A recent research study has shown that ... of food due to resource constraints, can lead to ... pregnancy. "Prior studies have shown that women ... experience health complications," said Craig Gundersen, a University of ...
... CORVALLIS, Ore. Scientists are a valuable and ... report, but too often do an inadequate job of ... a factual, non-technical, credible and neutral format. An ... establishment of "marine reserves" off the California coast offers ...
... 2010 - An article in the current issue of Global ... a perennial grass, could effectively reduce our dependence on fossil fuels, ... tool that models the future global climate, researchers predict that the ... natural vegetation will be paid back by Miscanthus within ...
Cached Biology News:Food insecurity increases risk of weight gain and complications during pregnancy 2Scientists need to be more proactive, effective at public communication 2Scientists need to be more proactive, effective at public communication 3
... is a personal desktop unit ideal for use ... , Rotation speed set at 12 rpm ... C , Bottle capacity of four 35 ... ml conical ,plastic bottles , Consistent, repeatable ...
... The SC250 Express is the latest edition ... SC250 Express has an extra large diameter ... The digital display panel allows precise setting ... Large chamber for handling large quantities and ...
... a no-frills, basic SpeedVac concentrator designed for ... this unit still features a standard Teflon ... of time and heat. It is designed ... a wide variety of different rotors for ...
... RC Maxi MB (for aqueous, other low ... evaporator systems respond to specific applications of ... safe concentration of heat-labile samples. The RC ... of cold traps and a wide selection ...
Biology Products: