Saglimbeni, F., Bianchi, S., Gibson, G. , Bowman, R., Padgett, M. and Di Leonardo, R. (2016) Holographic tracking and sizing of optically trapped microprobes in diamond anvil cells. Optics Express, 24(23), pp. 27009-27015. (doi: 10.1364/OE.24.027009) (PMID:27857428)
|
Text
131417.pdf - Published Version 2MB |
Abstract
We demonstrate that Digital Holographic Microscopy can be used for accurate 3D tracking and sizing of a colloidal probe trapped in a diamond anvil cell (DAC). Polystyrene beads were optically trapped in water up to Gigapascal pressures while simultaneously recording in-line holograms at 1 KHz frame rate. Using Lorenz-Mie scattering theory to fit interference patterns, we detected a 10% shrinking in the bead’s radius due to the high applied pressure. Accurate bead sizing is crucial for obtaining reliable viscosity measurements and provides a convenient optical tool for the determination of the bulk modulus of probe material. Our technique may provide a new method for pressure measurements inside a DAC.
Item Type: | Articles |
---|---|
Additional Information: | F.S., S.B. and R.D.L. acknowledge funding from the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no. 307940. R.W.B. acknowledges financial support from Queens’ College, Cambridge and the Royal Commission for the Exhibition of 1851. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Gibson, Dr Graham and Bowman, Dr Richard and Padgett, Professor Miles |
Authors: | Saglimbeni, F., Bianchi, S., Gibson, G., Bowman, R., Padgett, M., and Di Leonardo, R. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Optics Express |
Publisher: | Optical Society of America |
ISSN: | 1094-4087 |
ISSN (Online): | 1094-4087 |
Published Online: | 11 November 2016 |
Copyright Holders: | Copyright © 2016 Optical Society of America |
First Published: | First published in Optics Express 24(23):27009-27015 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
University Staff: Request a correction | Enlighten Editors: Update this record