Navigation Links
Discovery of World’s smallest laser

At the University of California, chemists have taken snapshots of the world’s smallest laser in action. Peidong Yang, assistant professor of chemistry at the UC Berkeley, reported the creation of an ultraviolet nanowire nonolaser shorter than the width of a human hair an done-hundredth the width.//

These ultraviolet nanolasers have generated great excitement in the opto-electronics community because of their potential applications in miniature optical computer circuitry and communicationsdevices, Yang said.

Yang and his laboratory colleagues have joined with Richard Saykally, professor of chemistry, of UC Berkeley lab to image single zinc oxide nanowires in the act of producing ultraviolet laser radiation. The snapshots were taken with a relatively new type of microscope called a near-field optical scanning microscope.

“Near-field optical microscopy is a very powerful technique, providing a snapshot wiht high spatial resolution and th eoptical signal simultaneously,” Yang said. “It allowed us to characterise the laser and dtermine beam characteristics.” What they found is that the nanowire acts first as a waveguide, channelling ht eultraviolet light back and forth in the cavity, secondarily also as a laser.Once emitted from the end of the laser, however, the light quickly diverges or spreads, in contrast to the highly collimated beam of a typical laser, which spreads little over distances as great as hundreds of miles.

This is not necessarily a disadvantage, Yang said. If a strong, collimated beam is needed, the light from many nanowires could be channeled into an optical waveguide. If a small footprint and tiny power are required, an individual laser could be used.The nanolasers are fabricated by a complicated high temperature process, called vapour-liquid-solid epitaxy, that grows vertical arrays of nanowires on gold-coated sapphire.

In order to image single nanolasers, the wires were broken out of th earrays and
'"/>




Page: 1 2

Related medicine news :

1. Discovery of bone gene
2. New Discovery May Help Treat Infertility
3. New Discovery to Increase Survival of Breast cancer Patients
4. Discovery of a built-in fat sensor
5. OHSU Researchers Announce New Discovery
6. Discovery Of New Molecule Could Solve Cancer Spread Mystery
7. Discovery Of Human Skeletons Could Unfold Facts About By-Gone Ages
8. New Discovery Shows That Brain Could repair Itself After Stroke
9. New Sleep Gene Discovery Wakes Up Scientists
10. Discovery of Elevated Amyloid Peptide levels could lead to Alzheimer’s Preventio
11. Discovery of Agile Molecular Motors Could Aid in Treating Motor Neuron Diseases
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Discovery World smallest laser

(Date:10/2/2014)... Reinberg HealthDay Reporter WEDNESDAY, ... major highway may raise your risk for high blood pressure, ... women, those who lived within 109 yards of a busy ... blood pressure than women living at least half a mile ... highlight the importance of our physical environment on our health ...
(Date:10/2/2014)... HealthDay Reporter WEDNESDAY, Oct. 1, ... the stops to rescue surgical patients in crisis are ... such heroism is questionable, a new study suggests. ... saving elderly patients with life-threatening complications after major surgery, ... senior author Dr. Amir Ghaferi. He is assistant professor ...
(Date:10/1/2014)... Adelaide have developed a model that could help to ... treatment - from their very first psychotic episode. , ... including clinical symptoms, cognitive abilities, MRI scans of the ... Speaking in the lead up to World Mental Health ... , Professor Bernhard Baune , says the model ...
(Date:10/1/2014)... study published today in the Journal of the ... than 50 years with moderate or severe chronic knee ... from the University of Melbourne randomly assigned 282 patients ... no acupuncture or sham or pretend laser treatment. ... and acupuncturists blinded to laser and sham (inactive) laser ...
(Date:10/1/2014)... PA, October 1, 2014 Patients with increased ... have a greatly increased risk of depression. For ... for chronic hepatitis C virus infection causes depression ... fatty acids, more commonly known as fish oil, ... lowering the risk of heart disease and reducing ...
Breaking Medicine News(10 mins):Health News:Living Near a Highway May Be Bad for Your Blood Pressure 2Health News:Living Near a Highway May Be Bad for Your Blood Pressure 3Health News:'High-Intensity' Hospitals Save More Elderly After Surgery: Study 2Health News:'High-Intensity' Hospitals Save More Elderly After Surgery: Study 3Health News:Predicting the future course of psychotic illness 2Health News:Study finds acupuncture does not improve chronic knee pain 2Health News:Omega-3 fatty acids may prevent some forms of depression 2
... but critics want agency to act, not wait years ... ads on television should include a toll-free phone number ... U.S. health experts suggested Friday. , The experts serve ... Drug Administration. Such phone numbers are already mandated by ...
... Workers, WASHINGTON, May 16 More than ... Portland, Oregon and,Vancouver, Washington area have ratified their ... that these workers are now covered by a,strong ... secure retirement,future," said Teamsters General President Jim Hoffa., ...
... benefit from calcitriol, an oral form , , FRIDAY, May 16 ... risk of death for people with moderate to severe chronic ... , During a two-year study of more than 1,400 ... activated vitamin D, had their overall risk of death lowered ...
... what did you,say?" is a phrase being used more ... Americans, that is 1 in 9 individuals, have,significant hearing ... rate.,Thirteen out of every 100 school age children have ... attention to this social and economic problem,is what led ...
... for May 19 at 10:15 a.m. Eastern Time, ... (TSX: RBM, OTCBB: RPBIF) today announced that S. ... at the Rodman & Renshaw,5th Annual Global Healthcare ... A live web cast of the presentation ...
... needs is more unemployed politicians - and economists, ... health care at the top of their "most-important issues" ... health care plans,advanced by any of the current presidential ... U.S. Senate Majority Leader Bill Frist., Jousting with ...
Cached Medicine News:Health News:FDA Panel Considers Toll-Free Number for TV Drug Ads 2Health News:FDA Panel Considers Toll-Free Number for TV Drug Ads 3Health News:Vitamin D Use Linked to Lower Mortality in Kidney Patients 2Health News:Huh, What Did You Say?: May is 'Better Hearing and Speech Month' 2Health News:Huh, What Did You Say?: May is 'Better Hearing and Speech Month' 3Health News:Response Biomedical Corporation to Present at Rodman & Renshaw 5th Annual Global Healthcare Conference 2Health News:Former Senate Majority Leader, Princeton Economist Joust on Future of Health Care 2Health News:Former Senate Majority Leader, Princeton Economist Joust on Future of Health Care 3
(Date:10/1/2014)... , October 1, 2014 ... Next Generation Sequencing (NGS) data analysis, today launches a ... cystic fibrosis analysis in a single NGS experiment. The ... all types of variants in a single NGS experiment ... it has not been possible to simultaneously analyse all ...
(Date:9/30/2014)... MARIETTA, Ga. , Sept. 30, 2014 ... leading regenerative medicine company utilizing human amniotic tissue and ... therapies for the Wound Care, Surgical, Orthopedic, Spinal, Sports ... Dr. Tom Koob , Ph.D., Chief Scientific Officer, ... Mesa. Dr. Koob will present on Tuesday, October 7, ...
(Date:9/30/2014)... NEW YORK , Sept. 30, 2014 /PRNewswire/ ... - 2014 Summary Global Markets Direct,s, ... 2014, provides an overview of the Aileron Therapeutics, ... report provides comprehensive information on the current therapeutic ... comparative analysis at various stages, therapeutics assessment by ...
Breaking Medicine Technology:Sophia Genetics Launches Full CFTR Analysis in Single Clinical Grade NGS Experiment 2MiMedx to Present at the Stem Cell Meeting on the Mesa 2Aileron Therapeutics, Inc. - Product Pipeline Review - 2014 2Aileron Therapeutics, Inc. - Product Pipeline Review - 2014 3
... At the 10th Asian Forum on Corporate Responsibility ... and its philanthropic foundation the Abbott Fund were honored ... advancing science education in the region.  Abbott Science Education ... innovative events designed to spark an interest in life-long ...
... Mass. and TORONTO, Oct. 24, 2011 Generex Biotechnology ... the Company is planning an investor update conference call ... to provide investors with an update on (i) the ... previously announced spinout of its wholly-owned immunotherapeutics subsidiary, Antigen ...
Cached Medicine Technology:Abbott Honored With Asian CSR Award for Leadership in Science Education 2Abbott Honored With Asian CSR Award for Leadership in Science Education 3Generex Announces Investor Update Conference Call Planned for Late November 2Generex Announces Investor Update Conference Call Planned for Late November 3
Inquire...
Inquire...
Inquire...
Inquire...
Medicine Products: