Field and material stresses predict observable surface forces in optical and electrostatic manipulation

Brandon A. Kemp; Cheyenne J. Sheppard

doi:10.1117/12.2237820

16 September 2016 Field and material stresses predict observable surface forces in optical and electrostatic manipulation

Brandon A. Kemp, Cheyenne J. Sheppard

Author Affiliations +

Proceedings Volume 9922, Optical Trapping and Optical Micromanipulation XIII; 99220T (2016) https://doi.org/10.1117/12.2237820
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

The momentum of light in media has been one of the most debated topics in physics over the past one hundred years. Originally a theoretical debate over the electrodynamics of moving media, practical applications have emerged over the past few decades due to interest in optical manipulation and nanotechnology. Resolution of the debate identifies a kinetic momentum as the momentum of the fields responsible for center of mass translations and a canonical momentum related to the coupled field and material system. The optical momentum resolution has been considered incomplete because it did not uniquely identify the full stress-energy-momentum (SEM) tensor of the field-kinetic subsystem. A consequence of this partial resolution is that the field-kinetic momentum could be described by three of the leading formulations found in the literature. The Abraham, Einstein-Laub, and Chu SEM tensors share the field-kinetic momentum, but their SEM tensors differ resulting in competing force densities. We can show now that the Abraham and Einstein-Laub formulations are invalid since their SEM tensors are not frame invariant, whereas the Chu SEM tensor satisfies relativistic principles as the field-kinetic formulation. However, a number of reports indicate that the force distribution in matter may not accurately represent experimental observations. In this correspondence, we show that the field-kinetic SEM tensor can be used along with the corresponding material subsystem to accurately predict experimental force and stress distributions. We model experimental examples from optical and static manipulation of particles and fluids.

Conference Presentation

Citation Download Citation

Brandon A. Kemp and Cheyenne J. Sheppard "Field and material stresses predict observable surface forces in optical and electrostatic manipulation", Proc. SPIE 9922, Optical Trapping and Optical Micromanipulation XIII, 99220T (16 September 2016); https://doi.org/10.1117/12.2237820

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