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:3/25/2015)... , March 25, 2015  The Technology Association of ... association dedicated to the promotion and economic advancement of ... Streamline Health as one of its Top 40 Innovative ... will recognize this prestigious group at the 2015 Georgia ... Cobb Galleria Centre. TAG,S Top 40 Awards ...
(Date:3/25/2015)... 2015  18 piglets born recently are the ... scientists in the College of Agriculture and Natural Resources at ... in the field of genetic engineering. Bhanu Telugu, ... & Avian Sciences (ANSC) and Ki-Eun Park, PhD, ... genome-edited pigs using a recently developed, groundbreaking technique ...
(Date:3/25/2015)... Proove Biosciences , a commercial and research ... success of their commercially supported symposium, Personalized Medicine ... Management of Pain, at the 31st Annual American Academy ... Thursday, March 19th, 2015. , The symposium’s ... Webster , M.D., former Florida Society of Interventional Pain ...
(Date:3/25/2015)... , March 25, 2015   Demy-Colton Life Science ... investor and business development conferences exclusively for the biopharmaceutical ... launching the Biotech CEO Summit. The ... that brings together biotech industry leaders who are united ... innovation while reaping the rewards of biotech,s new golden ...
Breaking Biology Technology:Streamline Health, Inc. Named a TAG Top 40 Innovative Technology Company 2Streamline Health, Inc. Named a TAG Top 40 Innovative Technology Company 3Streamline Health, Inc. Named a TAG Top 40 Innovative Technology Company 4University of Maryland Researchers Successfully Produce Genome-edited Pigs Using Revolutionary Technology 2Proove Biosciences Hosts Symposium on Incorporating Genetic Testing to Optimize the Management of Pain 2Biotech CEO Summit to Bring Key Biotech Leaders Together in Industry Brain Trust 2
... , , , , , ... company,providing customized enzymes to the pharmaceutical, chemical, and other,industries, announced today ... from existing shareholders. , The Company ... product portfolio and to accelerate the development of international,markets. At the ...
... , This release is available in German ... display case. A white light appears out of nowhere. And ... glance. Only upon close examination does the source of the ... a pinhead, passes through thousands of infinitesimal lens structures measuring ...
... EMERYVILLE, Calif. , Feb. 2 Onyx Pharmaceuticals, ... at the 12th Annual BIO CEO & Investor Conference on ... ( 5:30 a.m. Pacific Time ).  Interested parties may access ... , http://www.onyx-pharm.com/view.cfm/32/Event-Calendar , It is recommended that listeners log ...
Cached Biology Technology:EUCODIS Bioscience Receives EUR 2 Million Cash Injection to Enlarge Product Portfolio and Develop International Markets 2EUCODIS Bioscience Receives EUR 2 Million Cash Injection to Enlarge Product Portfolio and Develop International Markets 3Nano for the senses 2Nano for the senses 3Onyx Pharmaceuticals to Present at the 12th Annual BIO CEO & Investor Conference 2
(Date:3/16/2015)... Germany , March 16, 2015 ... Identification Systems GmbH will present groundbreaking innovations in ... Hanover, Germany .      ... DERMALOG,s latest biometric innovation is well at the ... next generation e-gate made in Germany ...
(Date:3/11/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/3p32qm/access_control ) has ... by Product, Application & By Geography - Global Forecast ... , This report predicts that the access ... 2020, with an estimated CAGR of 10.6%. ... such as contact cards & readers, contactless cards & ...
(Date:3/10/2015)... 2015  NXT-ID, Inc. (NASDAQ: NXTD ... biometric authentication company focused on the growing mobile ... has been named the "Number One Best Tech ... Rethink Modern ( http://www.rethinkmodern.com/ ) is a web ... and lifestyle that have a unique function or design.  ...
Breaking Biology News(10 mins):DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3Global Access Control (Cards & Readers, Biometrics, Controllers, Management Software) Market 2015-2020 - Analysis of the $10 Billion Market 2NXT-ID's Wocket Smart Wallet Named Number One Best Tech Gift for 2015 by Rethink Modern 2NXT-ID's Wocket Smart Wallet Named Number One Best Tech Gift for 2015 by Rethink Modern 3NXT-ID's Wocket Smart Wallet Named Number One Best Tech Gift for 2015 by Rethink Modern 4
... cancer is one of the most prevalent cancers in the ... then turns into an invasive and violent cancer, which often ... the journal Cancer Research, Prof. Avri Ben-Zeev and Dr. Nancy ... mechanisms that help this cancer metastasize. In a majority ...
... Mass. (August 27, 2007) Some scientific results are ... unable to physically see if the gene they inserted into ... problem researchers use various genetic markers that contain pieces of ... exposed to ultraviolet light. But scientists in the lab ...
... Three papers published by EMBL scientists and their collaborators ... information from large-scale proteomics data. The papers are published ... As the quantity of available biological information and ... the information held in these databases is vital to ...
Cached Biology News:A gene for metastasis 2Scientists identify embryonic stem cells by appearance alone 2Scientists identify embryonic stem cells by appearance alone 3Minimum information standards -- all for 1 and 1 for all 2Minimum information standards -- all for 1 and 1 for all 3
Recombinant Ovine (Sheep) Prolactin, Ultra Pure...
... HT, 1 kit. Facilitates the simple, phenol-free ... and hard tissue requiring proteinase K digestion.Each ... DNA from 50 preparations of up to ... Synthesis & Purification, Purification and Amplification of ...
... For rapid and efficient purification of DNA ... 15 minutes by gravity flow.Prepacked with Sephadex ... 0.15% Kathon CG/ICP Biocide.Available in three sizes ... (NAP-5), 1 ml (NAP-10) or 2.5 ml ...
Human ROR1 Affinity Purified Polyclonal Ab...
Biology Products: