Mapping 3D focal intensity exposes the stable trapping positions of single nanoparticles
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
The photonic interactions between a focused Gaussian laser beam and a nanoscopic particle are highly dependent on exact particle location and focal intensity distribution. So far, the 3D focal intensity distribution and the preferred position of a nanoparticle confined within the focal region were only theoretically predicted. Here, we directly map the three-dimensional focal intensity distribution, quantify stable trapping positions, and prove that certain sizes of nanoparticles stably trap in front of the focus.
Originalsprog | Engelsk |
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Tidsskrift | Nano Letters |
Vol/bind | 13 |
Udgave nummer | 1 |
Sider (fra-til) | 31-35 |
Antal sider | 5 |
ISSN | 1530-6984 |
DOI | |
Status | Udgivet - 9 jan. 2013 |
ID: 45576358