Navigation Links
Boston College researchers' unique nanostructure produces novel 'plasmonic halos'
Date:2/7/2013

CHESTNUT HILL, MA (February 7, 2013) Using the geometric and material properties of a unique nanostructure, Boston College researchers have uncovered a novel photonic effect where surface plasmons interact with light to form "plasmonic halos" of selectable output color. The findings appear in the journal Nano Letters.

The novel nanostructure proved capable of manipulating electron waves known as surface plasmon polaritons, or SPPs, which were discovered in the 1950s but of late have garnered the attention of scientists for their potential applications in fields that include waveguiding, lasing, color filtering and printing.

The team put a layer of a polymer film on a glass substrate and then dotted the surface with holes precisely defined by a process of electron beam lithography, using the BC Integrated Sciences Nanofabrication Clean Room facility. The team next applied a layer of silver, thick enough to be nontransparent to visible light. In addition to covering the thin film on top, the silver coated the contours of the holes in the film, as well as the exposed circles of the glass substrate below. The effect produced an array of silver microcavities.

When the researchers directed light from below and through the glass substrate, light "leaking" through nanoscale gaps on the perimeters of the microcavities created SPP waves on their top surfaces. At particular wavelengths of the incident light, these waves formed modes or resonances analogous to acoustic waves on a drumhead, which in turn effectively filtered the light transmitted to the far side, accounting for the "halo" appearance, said Boston College Ferris Professor of Physics Michael Naughton, who co-authored the report with Senior Research Associate Michael J. Burns and doctoral student and lead author Fan Ye. The team's research was funded by the W. M. Keck Foundation.

Central to this control effect are "step gaps" formed along the perimeter of each c
'/>"/>

Contact: Ed Hayward
ed.hayward@bc.edu
617-552-4826
Boston College
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Boston Scientific to Webcast Conference Call Discussing Fourth Quarter and Full Year 2012 Financial Results on January 29th
2. Shire and Boston Childrens Hospital Enter Into Broad Research Collaboration
3. Boston Childrens Hospital announces international genomics competition winner
4. BioBDx to Present at the 2012 BioPharm America and AdvaMed MedTech Conferences in Boston
5. Alacrita Establishes U.S. Headquarters in Boston Area
6. Sanofi Signs Agreement for Type 1 Diabetes Research with Boston Academic Teaching Hospital
7. Cadence Pharmaceuticals To Present At The Deutsche Bank Securities, Inc. 37th Annual Health Care Conference In Boston On May 8, 2012
8. Regado Biosciences, Inc. to Present at the Cowen and Company 32nd Annual Health Care Conference in Boston, MA
9. University of College London Hospitals (UCLH) Selects GEO SCAN Medical as New Standard of Care for the Detection and Treatment of Prostate Cancer
10. Quest Diagnostics Clinical Trials Biorepository Accredited by the College of American Pathologists
11. The American College of Obstetricians and Gynecologists Committee on Genetics and the Society for Maternal-Fetal Medicine Publications Committee Recommend Noninvasive Prenatal Testing for Fetal Aneuploidy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Boston College researchers' unique nanostructure produces novel 'plasmonic halos'
(Date:9/2/2014)... September 02, 2014 The inventors of ... for chronic tinnitus are seeking support for development costs ... Indiegogo platform ( http://igg.me/at/tinaway ), was launched on September ... therapeutic ‘mHealth’ app and is based on ten years ... team of biomedical and software engineers, Dr. Ian Dixon ...
(Date:8/31/2014)... 2014 Available spectra is similar ... research and cultivation of a wide range of ... LEDs with proven patented and pending wide spectrum ... uniformity in critical applications in contrast to growth ... “Our customers have a large variety of differently ...
(Date:8/29/2014)... but one of the most promising technologies for future ... light (photons) instead of electrons. First, it is necessary ... photons and control their direction. Researchers around the world ... control, but now scientists at the Niels Bohr Institute ... emitted one at a time and in a particular ...
(Date:8/29/2014)... Hills, NY (PRWEB) August 29, 2014 ... Burnt Hills Veterinary Hospital are seeking candidates to participate ... dogs with osteoarthritis. The ultimate goal of this ... donor stem cells into one or two arthritically affected ... treated joints. , Candidates for the current investigational ...
Breaking Biology Technology:tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 2tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 3tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 4tinAway Pty. Ltd. launch a crowdfunding campaign to fund a clinical trial of tinAway, a new potential cure for chronic tinnitus 5Breakthrough in light sources for new quantum technology 2Burnt Hills Veterinary Hospital Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2
... Hard-to-transfect Cells , Dmitriy ... Kelnar, David Brown, Ambion, Inc. , ... RNA interference (RNAi) is a powerful , ... genes. It is used routinely for gene function analysis, target , ...
... Trace amounts of ribonuclease (RNase) , ... ubiquitous in the laboratory environment--on your skin, in the , ... , open to the air--it ... or eliminate RNase contamination. However, determining which , ...
... , High Quality Custom Synthesis ... Mouse, and Rat , Genomes , ... Silencer siRNA Libraries , , ... Quality Custom RNA Synthesis by Ambion Finding a highly effective ...
Cached Biology Technology:Delivering siRNAs to Difficult Cell Types 2Delivering siRNAs to Difficult Cell Types 3Delivering siRNAs to Difficult Cell Types 4Delivering siRNAs to Difficult Cell Types 5Delivering siRNAs to Difficult Cell Types 6Delivering siRNAs to Difficult Cell Types 7Combat RNase Contamination in the Lab 2Combat RNase Contamination in the Lab 3Combat RNase Contamination in the Lab 4Combat RNase Contamination in the Lab 5IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 2IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 3IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 4IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 5IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 6IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 7IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 8IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 9IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER! 10
(Date:9/2/2014)... over the last decade in Taiyuan, China, have substantially ... a greater than 50% reduction in costs associated with ... according to researchers at the Columbia Center for Children,s ... Health, the Shanxi Medical University, the Center of Diseases ... University School of Public Health. , The study is ...
(Date:9/2/2014)... take stress in stride; others are done in by ... molecular mechanisms of this so-called stress gap in mice ... could lead researchers to better understand the development of ... people, each animal has unique experiences as it goes ... experiences can alter the expression of genes, and as ...
(Date:9/1/2014)... held that corals whose calcium-carbonate skeletons form ... organisms that rely entirely on ocean currents to ... But now scientists at MIT and the Weizmann ... that they are far from passive, engineering their ... greatly enhance their ability to exchange nutrients and ...
Breaking Biology News(10 mins):Clean air halves health costs in Chinese city 2Discovery hints at why stress is more devastating for some 2Discovery hints at why stress is more devastating for some 3Nature's tiny engineers 2Nature's tiny engineers 3
... will rewrite the textbooks on how an ovary is formed, ... The study, now published in the journal PLOS ONE ... key role in the development of ovaries and ovarian follicles, which ... discovery is expected to prompt further studies around the world to ...
... low temperatures and NMR spectroscopy, the scientists visualized seven ... down from 25C to -16C. Their results show that ... in protein folding. The scientists, findings may contribute to ... and misfold during illness. Whether Alzheimer,s, Parkinson,s ...
... Researchers from North Carolina State University have found that one ... States the Argentine ant appears to have met ... have found that the Asian needle ant is successfully displacing ... needle ant with its venomous sting may be ...
Cached Biology News:Study prompts rethink of how ovaries develop 2Protein 'filmed' while unfolding at atomic resolution 2Protein 'filmed' while unfolding at atomic resolution 3Researchers find Asian needle ants displacing other aggressive invaders 2
... EKMax™ is a recombinant preparation of ... EKMax™ Enterokinase is expressed and isolated from ... highly purified enzyme preparation (2). It recognizes ... bond after the lysine residue. The enzyme ...
... are cytopathic effect inhibition assays, also known as ... tissue culture supernatents; serum from PK studies and ... is defined as the quantity of interferon required ... viral infection by 50%. All standards ...
...
...
Biology Products: