Fast vectorial calculation of the volumetric focused field distribution by using a three-dimensional Fourier transform

J. Lin; O. G. Rodríguez-Herrera; F. Kenny; D. Lara; J. C. Dainty

doi:10.1364/OE.20.001060

Fast vectorial calculation of the volumetric focused field distribution by using a three-dimensional Fourier transform

J. Lin, O. G. Rodríguez-Herrera, F. Kenny, D. Lara, J. C. Dainty

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

47 Citations (Scopus)

Abstract

We show that the volumetric field distribution in the focal region of a high numerical aperture focusing system can be efficiently calculated with a three-dimensional Fourier transform. In addition to focusing in a single medium, the method is able to calculate the more complex case of focusing through a planar interface between two media of mismatched refractive indices. The use of the chirp z-transform in our numerical implementation of the method allows us to perform fast calculations of the three-dimensional focused field distribution with good accuracy.

Original language	English
Pages (from-to)	1060-1069
Number of pages	10
Journal	Optics Express
Volume	20
Issue number	2
DOIs	https://doi.org/10.1364/OE.20.001060
Publication status	Published - 16 Jan 2012
Externally published	Yes

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10.1364/OE.20.001060

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AB - We show that the volumetric field distribution in the focal region of a high numerical aperture focusing system can be efficiently calculated with a three-dimensional Fourier transform. In addition to focusing in a single medium, the method is able to calculate the more complex case of focusing through a planar interface between two media of mismatched refractive indices. The use of the chirp z-transform in our numerical implementation of the method allows us to perform fast calculations of the three-dimensional focused field distribution with good accuracy.

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Fast vectorial calculation of the volumetric focused field distribution by using a three-dimensional Fourier transform

Abstract

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