Optimized optical trapping of gold nanoparticles
Year: 2010
Type: article
Abstract: Metallic nanoparticles are of significant interest due to their particular optical and biological applications. Gold nanoparticles are proven to be excellent candidate for in vivo micro-manipulation using Optical Tweezers. This manuscript reports on stable 3-D trapping of 9.5-254nm gold nanospheres using substantially decreased laser power. The lower limit is approximately 2 times smaller than previous record. 5.4nm gold nanospheres were trapped for only 2-3 seconds. For the first time, our experimental data verify the volume corrected Rayleigh model for particles smaller than 100nm in diameter. Measuring the maximum applicable force for gold nanoparticles, we have shown that a few tens of milli-Watts of laser power can produce pico-Newton range forces.
Source: Optics Express
DOI: 10.1364/oe.18.000551
Authors: Faeghe Hajizadeh, S.Nader S.Reihani
Institution: Institute for Advanced Studies in Basic Sciences
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W2126856450