Volume 129, Number 5, March 2020
|Number of page(s)||7|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||02 April 2020|
Nanoscale optical trap for fluorescent nanoparticles
1 Université de Rennes 1, Campus de Beaulieu - F-35000 Rennes, France
2 Université de Rennes 1, CNRS IPR UMR 6251 - F-35000 Rennes, France
Received: 4 December 2019
Accepted: 23 March 2020
Optical trapping has offered new potentialities in the manipulation of bacteria, living cells, organelles, or microparticles in micrometric volumes. Its extension to the nanometer scale may create exceptional opportunities in many areas of science. We report here the trapping of a single 100 nm radius particle in a nanometric volume. The trapping relies on stimulated emission of the fluorescent particle in the evanescent wave of a totally reflected Arago spot on a glass-liquid interface. The trapping volume is a 200 nm height and 125 nm radius cylinder. Such a nano-trap, aside from applications in nano-physics, may echo the needs of life scientists to manipulate ever-smaller biological samples.
PACS: 87.80.Cc – Optical trapping / 42.50.Wk – Mechanical effects of light on material media, microstructures and particles / 78.45.+h – Stimulated emission
© EPLA, 2020
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.