Navigation Links
New nanolaser key to future optical computers and technologies
Date:8/16/2009

t of a revolution in nanophotonics, with applications in imaging and sensing at a scale that is much smaller than the wavelength of visible light," said Timothy D. Sands, the Mary Jo and Robert L. Kirk Director of the Birck Nanotechnology Center in Purdue's Discovery Park.

The spasers contain a gold core surrounded by a glasslike shell filled with green dye. When a light was shined on the spheres, plasmons generated by the gold core were amplified by the dye. The plasmons were then converted to photons of visible light, which was emitted as a laser.

Spaser stands for surface plasmon amplification by stimulated emission of radiation. To act like lasers, they require a "feedback system" that causes the surface plasmons to oscillate back and forth so that they gain power and can be emitted as light. Conventional lasers are limited in how small they can be made because this feedback component for photons, called an optical resonator, must be at least half the size of the wavelength of laser light.

The researchers, however, have overcome this hurdle by using not photons but surface plasmons, which enabled them to create a resonator 44 nanometers in diameter, or less than one-tenth the size of the 530-nanometer wavelength emitted by the spaser.

"It's fitting that we have realized a breakthrough in laser technology as we are getting ready to celebrate the 50th anniversary of the invention of the laser," Shalaev said.

The first working laser was demonstrated in 1960.

The research was conducted by Norfolk State researchers Mikhail A. Noginov, Guohua Zhu and Akeisha M. Belgrave; Purdue researchers Reuben M. Bakker, Shalaev and Evgenii E. Narimanov; and Cornell researchers Samantha Stout, Erik Herz, Teeraporn Suteewong and Ulrich B. Wiesner.

Future work may involve creating a spaser-based nanolaser that uses an electrical source instead of a light source, which would make them more practical for computer and electr
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Plasmonic whispering gallery microcavity paves the way to future nanolasers
2. Ricardo Launches Consortium to Evaluate Lubricant Challenges of Future Low Carbon Engine Technologies
3. Industry Leaders Will Gather to Discuss the Future of the "Hydrogen Economy" in Washington DC
4. GreenHouse Energy, Governor Schwarzenegger Join in Driving the Future of Fueling in California
5. POET to Outline Cellulosic Ethanol's Present, Future at Brazil's Ethanol Summit 2009
6. Health Strategies Group Forecasts Emerging Trends in Future Sales Force Models at the SPBT 2009 Conference
7. Cardium Announces Conference Call and Webcast to Review Recent Developments and Future Plans for the Excellarate(TM) Clinical Development Program
8. Isilon Hosts Industry Leaders Panel on the Future of Life Sciences and IT at Bio-IT World 2009
9. Oxygen Biotherapeutics, Inc. Signs Supply Agreement for Clinical-Grade Oxycyte for Clinical Trials and Future Needs
10. Cornerstone Therapeutics to Present at BioCenturys 2009 Future Leaders in the Biotech Industry Conference
11. Amniotic Fluid May Provide New Source of Stem Cells for Future Therapies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/25/2015)... - SQI Diagnostics Inc. ("SQI" or the "Company") (TSX-V: SQD; ... discussions with certain shareholders representing approximately 45% of the ... with certain matters including the appointment of auditors at ... 26, 2015 (the "Meeting") it intends to adjourn the ... place when the Meeting reconvenes. The Meeting will be ...
(Date:3/25/2015)... ROCKVILLE, Md. , March 25, 2015 ... been named a finalist for "Best Contract Research Organization" ... by the World Vaccine Congress. This ... as a finalist for the award, winning for "Best ... receiving a "Highly Recommended" distinction in 2013. ...
(Date:3/25/2015)... 25, 2015 Having added two International ... part of 2014, ITRA Global proudly announced recently the ... Tenant Representative Alliance, based in the United States, is ... and occupiers of commercial real estate. , Saltwood ... in Poland that exclusively advises occupiers of office space, ...
(Date:3/25/2015)... 25, 2015  18 piglets born recently are ... by scientists in the College of Agriculture and Natural ... breakthrough in the field of genetic engineering. Bhanu ... Animal & Avian Sciences (ANSC) and Ki-Eun Park, ... produced genome-edited pigs using a recently developed, groundbreaking ...
Breaking Biology Technology:SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 2SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 3SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 4SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 5Accelovance Nominated for 2015 Vaccine Industry Excellence (ViE) Awards 2International Organization Expands its Global Reach to Warsaw, Poland 2University of Maryland Researchers Successfully Produce Genome-edited Pigs Using Revolutionary Technology 2
... SpyGlass(R) Direct Visualization System can now be used ... NATICK, Mass., May 28 Boston Scientific Corporation ... it has received 510(k) clearance from the U.S. ... SpyScope(R) Access and Delivery Catheter for diagnostic and ...
... International is inviting abstracts from parties interested in presenting at the ... George Hotel in Edinburgh, Scotland. , ... London, ... are inviting abstracts for the 2009 Global Crop Protection Summit in ...
... Immucor, Inc. (Nasdaq: BLUD ), ... to the blood transfusion industry, announced today that ... Clinical Laboratories, LLC, one of the largest regional ... serving 27 hospitals in Illinois and Indiana. Under ...
Cached Biology Technology:FDA Clears Boston Scientific's SpyScope(R) Access and Delivery Catheter for Use in Endoscopic Procedures Throughout Pancreatico-Biliary System 2FDA Clears Boston Scientific's SpyScope(R) Access and Delivery Catheter for Use in Endoscopic Procedures Throughout Pancreatico-Biliary System 3FDA Clears Boston Scientific's SpyScope(R) Access and Delivery Catheter for Use in Endoscopic Procedures Throughout Pancreatico-Biliary System 4Call for papers for Pira International's Global Crop Protection Summit 2009 2Immucor and Alverno Clinical Laboratories Sign Five-Year Automation Agreement 2
(Date:3/23/2015)...   HOYOS Labs , a leading global authentication ... the Company will demonstrate multiple biometrics-based technologies under its ... Connect:ID on March 23 through 25, 2015, in ... the IEEE Biometric Open Protocol Standard; free biometrics-based consumer ... control system. BOPS was invented by HOYOS Labs and ...
(Date:3/20/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ) ... Global Strategic Business Report" report to their offering. ... in US$ Thousands. The report provides separate comprehensive analytics for ... , Europe , Asia-Pacific ... of World. Annual estimates and forecasts are provided ...
(Date:3/18/2015)... 18, 2015 As mobile payments become ... smart wallets and apps continue to be introduced into the ... the mobile payment industry in focus today are:  NXT-ID, Inc. ... BABA ), Apple Inc. (NASDAQ: AAPL ... Inc. (NASDAQ: FB ) NXT-ID, Inc. ...
Breaking Biology News(10 mins):HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6
... Some people first experienced the illusion of an extra dimension ... theme park. They may have watched short films simulating dizzying ... wowed for the first time by the 3D version of ... on a EUREKA project, however, have come up with technology ...
... ISRAEL, August 13, 2010 -- Ben-Gurion University of the Negev,s ... the Biodiversity and Environmental Research Center (BERC) in Nablus received ... Israel and the Middle East. This study brings together Israelis ... Bank area of Nablus over a five-year period. ...
... dog,s indiscriminate taste is not always a positive trait. ... consequent ailments such as diarrhea and vomiting that come ... as inflammatory bowel diseases that are not directly attributed ... Researchers at the University of Illinois are ...
Cached Biology News:Europe ready to launch 3-D TV outperforming the competition 2Europe ready to launch 3-D TV outperforming the competition 3Illinois researchers use pyrosequencing to study canine intestinal bacteria 2
... is a fixative useful for routine procedures. ... is stable and will decalcify small bone ... can be stained successfully with most stains, ... stabilizes red blood cell membranes and cosinophil ...
... is a fixative useful for routine procedures. ... is stable and will decalcify small bone ... can be stained successfully with most stains, ... stabilizes red blood cell membranes and cosinophil ...
Chicken polyclonal antibody to Glutathione-S-Transfrease (GST)...
... microarray informatics platform for microarray data storage, data ... use it forever without paying ongoing license fees. ... has all the analysis tools you need to ... control statistics and normalization, all the way through ...
Biology Products: