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; Tsz Fai 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, Tsz Fai Jack Ng^*

^*Corresponding author for this work

Department of Physics

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

32 Citations (Scopus)

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
Number of pages	7
Journal	Scientific Reports
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s41598-017-17874-1
Publication status	Published - 22 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 Ng, {Tsz Fai Jack}",

note = "Funding Information: The work is supported by Hong Kong RGC through GRF 603312, ECS 209913, and AoE/P-02/12. ZFL was supported by NNSFC through 11574055. JJD is also supported by NNSFC through 11474098 and Innovation Program of Shanghai Municipal Education Commission (No. 14ZZ049).",

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AU - Du, Junjie

AU - Yuen, Chi Hong

AU - Li, Xiao

AU - Ding, Kun

AU - Du, Guiqiang

AU - Lin, Zhifang

AU - Chan, C. T.

AU - Ng, Tsz Fai Jack

N1 - Funding Information: The work is supported by Hong Kong RGC through GRF 603312, ECS 209913, and AoE/P-02/12. ZFL was supported by NNSFC through 11574055. JJD is also supported by NNSFC through 11474098 and Innovation Program of Shanghai Municipal Education Commission (No. 14ZZ049).

PY - 2017/12/22

Y1 - 2017/12/22

N2 - 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.

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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