Navigation Links
New technique to compress light could open doors for optical communications
Date:7/30/2008

cram light down to the size of electron wavelengths to force light and matter to cooperate.

The researchers run into a brick wall, however, when it comes to compressing light farther than its wavelength. Light doesn't want to stay inside a space that small, Oulton said.

They have squished light beyond these limits using surface plasmonics, where light binds to electrons allowing it to propagate along the surface of metal. But the waves can only travel short distances along the metal before petering out.

Oulton had been working on combining plasmonics and semiconductors, where these losses are even more pronounced, when he came up with an idea to achieve simultaneously strong confinement of the light and mitigate the losses. His theoretical "hybrid" optical fiber consists of a very thin semiconductor wire placed close to a smooth sheet of silver.

"It's really a very simple geometry, and I was surprised that no one had come up with it before," Oulton said.

Oulton ran computer simulations to test this idea. He found that not only could the light compress into spaces only tens of nanometers wide, but it could travel distances nearly 100 times greater in the simulation than by conventional surface plasmonics alone. Instead of the light moving down the center of the thin wire, as the wire approaches the metal sheet, light waves are trapped in the gap between them, the researchers found.

The research team's technique works because the hybrid system acts like a capacitor, Oulton said, storing energy between the wire and the metal sheet. As the light travels along the gap, it stimulates the build-up of charges on both the wire and the metal, and these charges allow the energy to be sustained for longer distances. This finding flies in the face of the previous dogma that light compression comes with the drawback of short propagation distances, Zhang said.

"Previously, if you wanted to transmit light at a smaller s
'/>"/>

Contact: Rachel Tompa
rmtompa@berkeley.edu
510-643-1331
University of California - Berkeley
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. New technique produces genetically identical stem cells
2. On the boil: New nano technique significantly boosts boiling efficiency
3. UBC physicists develop impossible technique to study and develop superconductors
4. New molecular imaging techniques may lead to advances in disease treatment
5. New technique measures ultrashort laser pulses at focus
6. White Paper Details New Techniques for Isolating, Identifying Anaerobic Bacteria and Organisms
7. Assembly technique for tiny wires may eventually help detect cancer and other diseases
8. Unique infrared technique finds applications in nanoscience
9. DNA technique yields 3-D crystalline organization of nanoparticles
10. Cardica and Intuitive Surgical to Host Educational Symposium on Advanced Techniques and Technologies in Robotic Coronary Revascularization and Mitral Valve Repair
11. Doping technique brings nanomechanical devices into the semiconductor world
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/25/2014)... The Workgroup for Electronic ... authority on the use of health IT to ... appointment of four new co-chairs to the organization’s ... ,     Peter Dumont, Senior Director – ... Leader, Deloitte Consulting LLP ,     Deidre Rodriguez, ...
(Date:10/25/2014)... 2014 Today, Nerium International, a leader ... of its “Reflect Your Youth” contest, an effort launched ... a difference in their skin since using Nerium’s product ... on life as a result of their newfound confidence. ... effort by Nerium International to inspire conversations focused on ...
(Date:10/25/2014)... A new way to produce engineered skin not ... grafting technologies, it also speeds up the healing process, ... the October issue of STEM CELLS Translational Medicine, could ... result from severe burns and chronic wounds. , A ... These wounds heal by contraction, with epithelization (the process ...
(Date:10/25/2014)... -- Oramed Pharmaceuticals Inc. (NASDAQCM: ORMP) ( ... development of oral drug delivery systems, announced today that ... at FireRock Capital,s Micro-Cap Conference. Presentation ... October 28, 2014 ,Time: 9:15am EST ,Location: The Spring ... , About The FireRock Conference  ...
Breaking Biology Technology:WEDI Appoints Four New Security and Privacy Workgroup Co-chairs 2Nerium International™ Inspires Conversation About the Journey of Aging with “Reflect Your Youth” Contest 2New engineering method shows promise for faster healing, more cosmetically appealing skin grafts 2New engineering method shows promise for faster healing, more cosmetically appealing skin grafts 3Oramed to Present at the FireRock Annual Micro-Cap Conference 2Oramed to Present at the FireRock Annual Micro-Cap Conference 3
... in a hexagonal, chicken wire structure holds great ... conductive, graphene may one day replace conventional silicon microchips, ... In addition to potential applications in integrated circuits, solar ... material has attracted the attention of physicists for its ...
... Inc. (NYSE Amex: NBS ), an international biopharmaceutical company ... will present on a panel at the 31st Annual Cowen Group ... March 7, 2011 at 1 PM and Dr. Robin Smith, the ... at 10:15 AM. The Conference will be held at the Boston ...
... Corporation (Nasdaq: VOLC ), a leading developer ... enhance the diagnosis and treatment of coronary and peripheral ... market the Eagle Eye® Platinum digital IVUS catheter in ... PCI Live Demonstration Course in Kurashiki, which starts on ...
Cached Biology Technology:Probing atomic chicken wire 2Probing atomic chicken wire 3Probing atomic chicken wire 4NeoStem to Present at Cowen Group 31st Annual Health Care Conference on March 7 and 8 2NeoStem to Present at Cowen Group 31st Annual Health Care Conference on March 7 and 8 3Volcano Announces the Introduction of the Eagle Eye® Platinum Digital IVUS Catheter at the 20th PCI Live Demonstration Course in Kurashiki 2Volcano Announces the Introduction of the Eagle Eye® Platinum Digital IVUS Catheter at the 20th PCI Live Demonstration Course in Kurashiki 3
(Date:10/17/2014)... To date, antidotes ... doctors are often limited to supportive therapy such as induced ... of drugs involved. So what can be done if a ... professor Jean-Christophe Leroux from the Institute of Pharmaceutical Sciences at ... "The task was to develop an agent that could eliminate ...
(Date:10/16/2014)... Mary,s Virginia Institute of Marine Science have received ... Agency to identify the streams and wetlands most ... to help local governments and citizens conserve these ... a dataset of tidal-marsh observations first gathered by ... historical baseline can today,s researchers accurately map the ...
(Date:10/16/2014)... challenged conventional thinking on how the bowel lining develops ... how bowel cancer starts. , The researchers produced evidence ... the ,crypts, that are a feature of the bowel ... bowel cancer development, a controversial finding as scientists are ... 3D imaging technologies, Dr Chin Wee Tan and Professor ...
Breaking Biology News(10 mins):Emergency aid for overdoses 2Emergency aid for overdoses 3EPA grant will help localities conserve headwater wetlands 2EPA grant will help localities conserve headwater wetlands 3Cryptic clues drive new theory of bowel cancer development 2
... experiences trauma or disease, such as muscular dystrophy, ... cells" respond to repair and regenerate the muscle. ... such as muscular dystrophy, which affect muscle stability ... used time-lapse photography to document satellite cell movements ...
... PHILADELPHIA Although acute myeloid leukemia (AML) is relatively ... the risk, according to a recent paper published in ... of the American Association for Cancer Research. Julie ... and clinical research at the University of Minnesota, said ...
... to the poles, and you,ll notice that the ... equator. Move from lowland to mountains, and you,ll ... varied. Ecologists have proposed various explanations for these ... processes. New findings by University of ...
Cached Biology News:Caught on tape: Muscle stem cells captured on video by MU researcher 2Climate change and mountain building led to mammal diversity patterns 2
Recommended for supporting the growth of anchorage-dependent cells including human and mouse stromal cells, mesenchymal cells and cell lines....
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: cap, ...
Extremely high efficiency packaging extracts useful for transfecting our EpiFOS™ or CopyControl™ Fosmids, or any DNA vector with cos sites. A tremendous value when conpared to the competition...
... General description: Workstation for PCR set-up ... 96 MicroWell format to hold 0.2 ml PCR tubes, ... compatible with automated handling systems Removable tray ... Compatible with V-bottom 0.2 ml tube block thermal ...
Biology Products: