Trapping force by a high numerical-aperture microscope objective obeying the sine condition

Min Gu; P. C. Ke; X. S. Gan

doi:10.1063/1.1148009

Trapping force by a high numerical-aperture microscope objective obeying the sine condition

Min Gu, P. C. Ke, X. S. Gan

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

29 Citations (Scopus)

Abstract

A commercial high numerical-aperture microscope objective is designed in terms of the sine condition which is needed for two-dimensional space-invariant imaging. The axial trapping efficiency generated by an objective obeying the sine condition is found to be approximately up to 50% smaller than the prediction for an objective obeying the tangent condition which has been currently used in the ray optics theory for trapping force calculations. Our result is in good agreement with the measured value of the trapping efficiency.

Original language	English
Pages (from-to)	3666-3668
Number of pages	3
Journal	Review of Scientific Instruments
Volume	68
Issue number	10
DOIs	https://doi.org/10.1063/1.1148009
Publication status	Published - 1 Jan 1997
Externally published	Yes

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abstract = "A commercial high numerical-aperture microscope objective is designed in terms of the sine condition which is needed for two-dimensional space-invariant imaging. The axial trapping efficiency generated by an objective obeying the sine condition is found to be approximately up to 50% smaller than the prediction for an objective obeying the tangent condition which has been currently used in the ray optics theory for trapping force calculations. Our result is in good agreement with the measured value of the trapping efficiency.",

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Trapping force by a high numerical-aperture microscope objective obeying the sine condition

Abstract

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