Aberration correction in holographic optical tweezers using a high-order optical vortex

Yansheng Liang, Yanan Cai, Zhaojun Wang, Ming Lei, Zhiliang Cao, Yue Wang, Manman Li, Shaohui Yan, Piero R. Bianco, Baoli Yao

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Holographic optical tweezers are a powerful optical trapping and manipulation tool in numerous applications such as life science and colloidal physics. However, imperfections in the spatial light modulator and optical components of the system will introduce detrimental aberrations to the system, thereby degrading the trapping performance significantly. To address this issue, we develop an aberration correction technique by using a high-order vortex as the correction metric. The optimal Zernike polynomial coefficients for quantifying the system aberrations are determined by comparing the distorted vortex and the ideal one. Efficiency of the proposed method is demonstrated by comparing the optical trap intensity distribution, trap stiffness, and particle dynamics in a Gaussian trap and an optical vortex trap, before and after aberration corrections.

Original languageEnglish (US)
Pages (from-to)3618-3623
Number of pages6
JournalApplied optics
Volume57
Issue number13
DOIs
StatePublished - May 1 2018
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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