Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Three-dimensional positioning of optically trapped nanoparticles

Not Accessible

Your library or personal account may give you access

Abstract

We firstly demonstrate the three-dimensional (3D) measurement of a nanometer-sized sphere held in optical tweezers in water using an in-line digital holographic microscope with a green light emitting diode. Suppressing the movement with optical tweezers enabled us to detect the three-dimensional position of a polystyrene sphere with a diameter of 200nm. The positioning resolutions of the microscope were 3.2nm in the transverse direction and 3.4nm in the axial direction, from the standard deviation of measurements of the 200nm sphere fixed on glass. Changes in the Brownian motion in response to a change in the trapping laser power were measured. We also demonstrated that this holographic measurement is an effective method for determining the threshold power of the optical trapping.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Three-dimensional subpixel estimation in holographic position measurement of an optically trapped nanoparticle

Akira Sato, Quang Duc Pham, Satoshi Hasegawa, and Yoshio Hayasaki
Appl. Opt. 52(1) A216-A222 (2013)

Position clamping in a holographic counterpropagating optical trap

Richard Bowman, Alexander Jesacher, Gregor Thalhammer, Graham Gibson, Monika Ritsch-Marte, and Miles Padgett
Opt. Express 19(10) 9908-9914 (2011)

Three-dimensional imaging with optical tweezers

M. E. J. Friese, A. G. Truscott, H. Rubinsztein-Dunlop, and N. R. Heckenberg
Appl. Opt. 38(31) 6597-6603 (1999)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved