Optimising forces and torques for optical micromanipulation

Stephen H. Simpson; David B. Phillips; Simon Hanna

doi:10.1117/12.2008950

5 March 2013 Optimising forces and torques for optical micromanipulation

Stephen H. Simpson, David B. Phillips, Simon Hanna

Proceedings Volume 8637, Complex Light and Optical Forces VII; 863710 (2013) https://doi.org/10.1117/12.2008950
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

The motion of a colloidal particle in an optical field depends on a complex interplay between the structure of the field, and the geometry and composition of the particle. There are two complementary approaches to generating a particular force field. The first, involving shaping the optical field with e.g. a spatial light modulator, has been extensively developed. A second method, highlighted recently [J. Gluckstad, Nature Photonics, 5, 7–8 (2011)] involves sculpting of the particles themselves, and has received less attention. However, as modern two-photon polymerisation methods advance, this avenue becomes increasingly attractive for micromanipulation. In this paper we will show how computational methods may be used to optimise particle geometries to produce desirable patterns of forces and torques. In particular, we will examine the design of a constant force optical spring for use as a passive force clamp, and the effect of particle size on the trapping of prolate spheroids.

Citation Download Citation

Stephen H. Simpson, David B. Phillips, and Simon Hanna "Optimising forces and torques for optical micromanipulation", Proc. SPIE 8637, Complex Light and Optical Forces VII, 863710 (5 March 2013); https://doi.org/10.1117/12.2008950

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available