Tailoring Optical Gradient Force and Optical Scattering and Absorption Force

Junjie Du; Chi Hong Yuen; Xiao Li; Kun Ding; Guiqiang Du; Zhifang Lin; C. T. Chan; Jack Ng

doi:10.1038/s41598-017-17874-1

Tailoring Optical Gradient Force and Optical Scattering and Absorption Force

Junjie Du
, Chi Hong Yuen
, Xiao Li
, Kun Ding
, Guiqiang Du
, Zhifang Lin
, C. T. Chan
, Jack Ng^*

^*Corresponding author for this work

School of Physics and Electronic Science

Hong Kong Baptist University
Hong Kong University of Science and Technology
Fudan University
Nanjing University

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

The introduction of the concept of gradient force and scattering and absorption force is an important milestone in optical trapping. However the profiles of these forces are usually unknown, even for standard setups. Here, we successfully calculated them analytically via multipole expansion and numerically via Mie theory and fast Fourier transform. The former provides physical insight, while the latter is highly accurate and efficient. A recipe to create truly conservative energy landscapes is presented. These may open up qualitatively new features in optical manipulation.

Original language	English
Article number	18042
Journal	Scientific Reports
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s41598-017-17874-1
State	Published - 1 Dec 2017

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title = "Tailoring Optical Gradient Force and Optical Scattering and Absorption Force",

abstract = "The introduction of the concept of gradient force and scattering and absorption force is an important milestone in optical trapping. However the profiles of these forces are usually unknown, even for standard setups. Here, we successfully calculated them analytically via multipole expansion and numerically via Mie theory and fast Fourier transform. The former provides physical insight, while the latter is highly accurate and efficient. A recipe to create truly conservative energy landscapes is presented. These may open up qualitatively new features in optical manipulation.",

author = "Junjie Du and Yuen, \{Chi Hong\} and Xiao Li and Kun Ding and Guiqiang Du and Zhifang Lin and Chan, \{C. T.\} and Jack Ng",

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AU - Lin, Zhifang

AU - Chan, C. T.

AU - Ng, Jack

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Y1 - 2017/12/1

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AB - The introduction of the concept of gradient force and scattering and absorption force is an important milestone in optical trapping. However the profiles of these forces are usually unknown, even for standard setups. Here, we successfully calculated them analytically via multipole expansion and numerically via Mie theory and fast Fourier transform. The former provides physical insight, while the latter is highly accurate and efficient. A recipe to create truly conservative energy landscapes is presented. These may open up qualitatively new features in optical manipulation.

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Tailoring Optical Gradient Force and Optical Scattering and Absorption Force

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