Navigation Links
Researchers create laser the size of a virus particle
Date:11/5/2012

A Northwestern University research team has found a way to manufacture single laser devices that are the size of a virus particle and that operate at room temperature. These plasmonic nanolasers could be readily integrated into silicon-based photonic devices, all-optical circuits and nanoscale biosensors.

Reducing the size of photonic and electronic elements is critical for ultra-fast data processing and ultra-dense information storage. The miniaturization of a key, workhorse instrument -- the laser -- is no exception.

The results are published in the journal Nano Letters.

"Coherent light sources at the nanometer scale are important not only for exploring phenomena in small dimensions but also for realizing optical devices with sizes that can beat the diffraction limit of light," said Teri Odom, a nanotechnology expert who led the research.

Odom is the Board of Lady Managers of the Columbian Exposition Professor of Chemistry in the Weinberg College of Arts and Sciences and a professor of materials science and engineering in the McCormick School of Engineering and Applied Science.

"The reason we can fabricate nano-lasers with sizes smaller than that allowed by diffraction is because we made the lasing cavity out of metal nanoparticle dimers -- structures with a 3-D 'bowtie' shape," Odom said.

These metal nanostructures support localized surface plasmons -- collective oscillations of electrons -- that have no fundamental size limits when it comes to confining light.

The use of the bowtie geometry has two significant benefits over previous work on plasmon lasers: (1) the bowtie structure provides a well-defined, electromagnetic hot spot in a nano-sized volume because of an antenna effect, and (2) the individual structure has only minimal metal "losses" because of its discrete geometry.

"Surprisingly, we also found that when arranged in an array, the 3-D bowtie resonators could emit l
'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. New England Biolabs Introduces Polbase, an Information Repository of Scientific Data for Polymerase Researchers
2. In new quantum-dot LED design, researchers turn troublesome molecules to their advantage
3. Multidisciplinary team of researchers develop world’s lightest material
4. Researchers shrink tumors and minimize side effects using tumor-homing peptide to deliver treatment
5. Innovative MetaMorph® NX Software Shatters Barriers Between Researchers and Image Analysis Goals with Exclusive Visual Workflow
6. UCLA researchers demonstrate fully printed carbon nanotube transistor circuits for displays
7. Penn and Brown researchers demonstrate earthquake friction effect at the nanoscale
8. Two Top Biological Imaging Centers Offer Powerful Free Online Tool to Researchers, Educators, and Public
9. Researchers develop one of the worlds smallest electronic circuits
10. MU researchers identify key plant immune response in fight against bacteria
11. Researchers realize high-power, narrowband terahertz source at room temperature
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2014)... 2014   Propeller Health , the FDA-cleared digital ... of Brad Towle as Senior Vice President, ... driving the company,s sales growth, customer acquisition and program ... specifically his past role in the development of accountable ... this pivotal time in the industry," said David ...
(Date:7/28/2014)... , July 28, 2014  InterMune, Inc. (NASDAQ: ... release its second quarter 2014 financial results at the ... 2014. A live conference call and webcast will be hosted ... day. Interested investors and others may participate ... +1 212-231-2900 (international), conference ID#21728775. A replay of the webcast ...
(Date:7/26/2014)... Albany, NY (PRWEB) July 26, 2014 ... 2020 provides key market data on the Canada ... in millions of US dollars, volume (in units) ... segments - High-End Endoscopy Visualization Systems, Mid-Range Endoscopy ... Browse Full Report at http://www.marketresearchreports.biz/analysis/213254 . , ...
(Date:7/25/2014)... University of Leicester has furthered our understanding of ... create new materials using nanosized ,building blocks,. , ... prestigious academic journal Physical Review Letters , ... rich detail the structure and internal atomic motion ... and a single helium atom. , The technique ...
Breaking Biology Technology:Propeller Health Hires Brad Towle as Senior Vice President of Business and Client Development 2InterMune to Release Second Quarter Financial Results on August 6 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 3Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 5Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3
... tumor,s vulnerability yields durable responses in Phase I/II ... ... 21 Systems Medicine, LLC (SM),a wholly-owned subsidiary of Cell Therapeutics, ... phase I trial,combining cisplatin with brostallicin in patients with solid tumors ...
... Nov. 21 Syngenta and the Royal,Society of Chemistry ... to help promote the economic and social development of,the ... continent,is being established initially in Kenya. Its purpose is ... to achieve greater levels of,innovation and scientific development., ...
... paper to be published Nov. 22 in the online ... of Wisconsin-Madison researchers reports the genetic reprogramming of human ... cells., The finding is not only a critical scientific ... landscape of stem cell biology as human embryos may ...
Cached Biology Technology:Brostallicin Trial Data Demonstrates Encouraging Anti-tumor Activity in Patients With Chemotherapy-Resistant Cancers 2Brostallicin Trial Data Demonstrates Encouraging Anti-tumor Activity in Patients With Chemotherapy-Resistant Cancers 3Syngenta and The Royal Society of Chemistry Launch African Science Initiative 2Syngenta and The Royal Society of Chemistry Launch African Science Initiative 3UW-Madison scientists guide human skin cells to embryonic state 2UW-Madison scientists guide human skin cells to embryonic state 3
(Date:7/28/2014)... became the first man to reach the South Pole ... an international team of scientists led by Joe McConnell ... air pollution from industrial activities arrived long before. , ... spaced locations around the Antarctic continent, including the South ... reconstruction to date of lead pollution over the Earth,s ...
(Date:7/27/2014)... largest prevalence studies to date, researchers from the U.K. ... the hepatitis C virus (HCV). Findings published in Hepatology, ... of Liver Diseases, indicate that genotype 1 is the ... of which one-third reside in East Asia. Genotype 3, ... most prevalent, followed by genotypes 2, 4, 6, and ...
(Date:7/27/2014)... shown the potential for global climate change to cut ... part, ignored the interactions between increasing temperature and air ... damage crops. , A new study involving researchers at ... suggesting that policymakers need to take both warming and ... The study looked in detail at global production of ...
Breaking Biology News(10 mins):Industrial lead pollution beat explorers to the South Pole by 22 years and persists today 2Industrial lead pollution beat explorers to the South Pole by 22 years and persists today 3Hepatitis C virus genotype 1 is most prevalent worldwide 2Study: Climate change and air pollution will combine to curb food supplies 2Study: Climate change and air pollution will combine to curb food supplies 3
... among the authors of a new paper that describes ... when and how to use an environmental strategy known ... assistant professors of biology, and Alejandro Camacho, associate professor ... that produced the paper, which appears in this week,s ...
... are several risk factors for the development of Alzheimer,s ... of studies linking these risk factors with Vitamin D ... Journal of Alzheimer,s Disease (May 2009) by ... Health Research Center (SUNARC) suggests that further investigation of ...
... wounded during combat, surgeons must focus on reducing infection ... improve the repair and regeneration processes are being developed ... not being moved quickly enough into military trauma centers. ... for Advanced Bioengineering for Soldier Survivability want to change ...
Cached Biology News:Notre Dame researchers describe new tool for evaluating 'managed relocations' 2Notre Dame researchers describe new tool for evaluating 'managed relocations' 3Is vitamin D deficiency linked to Alzheimer's disease and vascular dementia? 2New center at Georgia Tech aims to improve recovery of soldiers with severe injuries 2New center at Georgia Tech aims to improve recovery of soldiers with severe injuries 3
... 9001:2000 Certified USDA Research Registered OLAW Assured ... Training AALAS Certified Technicians Documentation ... Documentation Upon Request Focus CRP ... all your custom immunology service needs. ...
Request Info...
... include: ,ICC and IHC Protocol Development ... ,Antibody Screenings in Animal or Human ... of Cells and Tissues ,Peroxidase, Alkaline ... Fluorescent, or Electron Microscopy ,Protein Localization ...
Request Info...
Biology Products: