Navigation Links
Regular light bulbs made super-efficient with ultra-fast laser
Date:5/29/2009

An ultra-powerful laser can turn regular incandescent light bulbs into power-sippers, say optics researchers at the University of Rochester. The process could make a light as bright as a 100-watt bulb consume less electricity than a 60-watt bulb while remaining far cheaper and radiating a more pleasant light than a fluorescent bulb can.

The laser process creates a unique array of nano- and micro-scale structures on the surface of a regular tungsten filamentthe tiny wire inside a light bulband theses structures make the tungsten become far more effective at radiating light.

The findings will be published in an upcoming issue of the journal Physical Review Letters.

"We've been experimenting with the way ultra-fast lasers change metals, and we wondered what would happen if we trained the laser on a filament," says Chunlei Guo, associate professor of optics at the University of Rochester. "We fired the laser beam right through the glass of the bulb and altered a small area on the filament. When we lit the bulb, we could actually see this one patch was clearly brighter than the rest of the filament, but there was no change in the bulb's energy usage."

The key to creating the super-filament is an ultra-brief, ultra-intense beam of light called a femtosecond laser pulse. The laser burst lasts only a few quadrillionths of a second. To get a grasp of that kind of speed, consider that a femtosecond is to a second what a second is to about 32 million years. During its brief burst, Guo's laser unleashes as much power as the entire grid of North America onto a spot the size of a needle point. That intense blast forces the surface of the metal to form nanostructures and microstructures that dramatically alter how efficiently can radiate from the filament.

In 2006, Guo and his assistant, Anatoliy Vorobeyv, used a similar laser process to turn any metal pitch black. The surface structures created on the metal were incredibly effective at captu
'/>"/>

Contact: Jonathan Sherwood
jonathan.sherwood@rochester.edu
585-273-4726
University of Rochester
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Atrial Fibrillation Month - StopAfib.org Announces September Focus on Life-Threatening Irregular Heartbeat
2. World Sight Day - Britons at Risk of Losing Their Sight by Not Having Regular Eye Tests
3. Dendreon Announces Publication of Phase 1 Study Highlighting Immunologic and Clinical Activity of Lapuleucel-T (Neuvenge(R)) in Advanced Breast Cancer Patients
4. ImmuneRegen BioSciences Files 8-K that Highlights Enclosed Shareholder Letter Discussing Recent Achievements and Outlook
5. Safety Profile of TAXUS(R) Liberte(TM) Stent System Highlighted in Worlds Largest Stent Registry
6. Stimuvax(R) Phase II data highlight three-year survival results for patients with non-small cell lung cancer
7. Three Studies by Independent Scientists Highlighting Pressure Cycling Technology (PCT) to be Presented this Week at the British Mass Spectrometry Societys 29th Annual Meeting
8. Access Highlighted in Recent BusinessWeek Article
9. Lighting the Onco-Pipeline, Stem Cell Cancer, and More at Global Cancer Congress, January 28-29, 2008, Tampa
10. Highlights of Economic and Business Growth in the Tampa Bay Region
11. Respironics Acquires Apollo Light Systems, Inc., Expands into Circadian Rhythm Device-Based Therapy Market
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Regular light bulbs made super-efficient with ultra-fast laser
(Date:7/31/2014)... (PRWEB) July 31, 2014 Food ... are increasingly searching for food alternatives that offer ... benefits. The food ingredient market has numerous players ... such as Vital Force Technology (VFT). VFT ... than 4,000 energetic patterns, all tested to produce ...
(Date:7/31/2014)... , July 31, 2014 Nearly 20,000 ... th Annual Meeting & Clinical Lab Expo in ... meeting featured never-before-seen breakthroughs in diagnostic research and technology ... they need. As of Wednesday, July 30, ... AACC Annual Meeting & Clinical Lab Expo, with more ...
(Date:7/31/2014)... through organs and even the entire body to visualize ... structures has been a long-time dream of biologists. A ... in the journal Cell has now made ... opaque organs, bodies, and human tissue biopsies transparent, while ... could pave the way for a better understanding of ...
(Date:7/31/2014)... July 31, 2014 The SNIS Foundation ... $25,000 to fund a translational research project.  The ... the gift was presented at the Society of ... in Colorado Springs, CO. ... approaches to neurovascular conditions, SNIS formed the SNIS ...
Breaking Biology Technology:Functional Ingredient Manufacturer – Vital Force Technology Infuses Raw Materials & Ingredients with Subtle Energy Formula 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 3See-through organs and bodies will accelerate biomedical discoveries 2SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 2SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 3
... , , SAN ... (NYSE: SAI ) announced today that Anthony Hess, Ph.D., ... Health Solutions BU (HSBU) effective Aug. 3. Hess will ... and commercial health customers, including the Departments of Defense, Health and ...
... PERTH, Australia, July 16 Dow AgroSciences LLC, a wholly owned ... and NemGenix, a Perth based biotechnology company, announced today a newly ... , , The collaboration will ... Financial terms of the agreement were not disclosed. , ...
... , COSTA MESA, Calif., July 16 Oxygen Biotherapeutics, ... on the first $5 million financing tranche with the Vatea Fund, Segregated ... , For additional details on the agreement, please ... which is available on the SEC website at www.sec.gov and through the ...
Cached Biology Technology:Anthony Hess to Lead SAIC Health Solutions Business Unit 2Anthony Hess to Lead SAIC Health Solutions Business Unit 3Dow AgroSciences, NemGenix Establish New Collaboration in Plant Biotechnology 2
(Date:7/31/2014)... lurks beneath many of the roughly 156,000 gas ... is corrosion in parts of underground gas storage ... contamination of groundwater, a source of drinking water. ... have reported many rapidly corroding gas storage tank ... generally associated with use of gasoline-ethanol blends and ...
(Date:7/31/2014)... make a rational choice to be liberal or conservative? ... a matter of genetics?, Two political scientists from the ... say that neither conscious decision-making nor parental upbringing fully ... right. , A growing body of evidence shows that ... of political differences, the researchers say in the latest ...
(Date:7/31/2014)... known as the Rim Fire was in full fury, ... when it entered the backcountry of Yosemite National Park ... inside the park, the battle began to turn, enacting ... drought can combine to fuel large, severe fires. , ... encountered lands where fire had been used as a ...
Breaking Biology News(10 mins):NIST corrosion lab tests suggest need for underground gas tank retrofits 2Scientists find growing consensus: Political attitudes derive from body and mind 2The Rim Fire 1 year later: A natural experiment in fire ecology and management 2The Rim Fire 1 year later: A natural experiment in fire ecology and management 3The Rim Fire 1 year later: A natural experiment in fire ecology and management 4The Rim Fire 1 year later: A natural experiment in fire ecology and management 5
... are a major cause of disability or premature death in ... already suffered one fragility fracture; they are at twice the ... have not fractured. Nevertheless health care systems around ... leaving them exposed to debilitating and life-threatening secondary fractures. ...
... to 20 percent of veterans returning from Afghanistan and Iraq ... that nearly half these veterans may have a problem so ... it. A new study conducted by Charles W. Wilkinson, Elizabeth ... R. Peskind, all of the VA Puget Sound Health Care ...
... YORK , April 22, 2013 ... report is available in its catalogue: ... Opportunities, 2018 http://www.reportlinker.com/p01162444/India-Biometrics-Market-Forecast-and-Opportunities-2018.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Security_Systems ... new and progressive products in ...
Cached Biology News:New review sets international standards for best practice in fracture liaison services 2Nearly half of veterans found with blast concussions might have hormone deficiencies 2Nearly half of veterans found with blast concussions might have hormone deficiencies 3India Biometrics Market Forecast and Opportunities, 2018 2India Biometrics Market Forecast and Opportunities, 2018 3India Biometrics Market Forecast and Opportunities, 2018 4India Biometrics Market Forecast and Opportunities, 2018 5India Biometrics Market Forecast and Opportunities, 2018 6
Phospho-SEK1/MKK4 (Thr261) Antibody...
Rabbit polyclonal to Warfarin ( Abpromise for all tested applications). Antigen: Chemical / Small Molecule conjugated to KLH...
HSD17B3 Immunogen: HSD17B3 (NP_000188, 29 a.a. ~ 120 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
Rabbit polyclonal to 13,14 dihydro 15 keto Prostaglandin E2 ( Abpromise for all tested applications)....
Biology Products: