Linked Life Data

18304078

Source:http://linkedlifedata.com/resource/pubmed/id/18304078

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 2
pubmed:dateCreated
2008-2-28
pubmed:abstractText
We report on an aperture scanning near-field optical microscope in which femtosecond pulses are coupled to a hollow-pyramid aperture sensor. Such probe displays high throughput and preserves pulse duration and polarization, enabling the achievement of sufficiently high peak power in the near field to perform nonlinear optics on the nanoscale. We use the system to observe the nonlinear optical response of nanostructured metal surfaces with sub-100-nm spatial resolution. We study second-harmonic generation from gold nanoparticles both isolated and in high-density patterns, highlighting a strong dependence of the generation efficiency on the shape and on the fine structure of the nanoemitter. In particular, we present results on closely packed gold triangles as well as on nanoellipsoids with different local surface plasmon resonances.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Feb
pubmed:issn
1365-2818
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
229
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
233-9
pubmed:year
2008
pubmed:articleTitle
Mapping local field enhancements at nanostructured metal surfaces by second-harmonic generation induced in the near field.
pubmed:affiliation
ULTRAS-CNR-INFM, Physics Department, Politecnico di Milano, Piazza Leonardo da Vinci 32, L-20133 Milan, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't