Mapping 3D focal intensity exposes the stable trapping positions of single nanoparticles

TY - JOUR

T1 - Mapping 3D focal intensity exposes the stable trapping positions of single nanoparticles

AU - Kyrsting, A.

AU - Bendix, P.M.

AU - Oddershede, L.B.

PY - 2013/1/9

Y1 - 2013/1/9

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84872113661&partnerID=8YFLogxK

U2 - 10.1021/nl3032263

DO - 10.1021/nl3032263

M3 - Journal article

AN - SCOPUS:84872113661

SN - 1530-6984

VL - 13

SP - 31

EP - 35

JO - Nano Letters

JF - Nano Letters

IS - 1

ER -