Bessel beams with an adjustable focal position

Keren Zhalenchuck; Alon Bahabad

doi:10.1364/AO.551861

Bessel beams with an adjustable focal position

Keren Zhalenchuck, Alon Bahabad

School of Electrical Engineering

Tel Aviv University

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

Abstract

We present a simple method to dynamically modify the focal position of a Bessel beam without changing its non-diffraction length and intensity profile. This is done by generating the Bessel beam in Fourier space using an annular aperture while adding a radial grating to the aperture with a tunable periodicity. This method can be useful for various applications, such as microscopy and optical trapping.

Original language	English
Pages (from-to)	2403-2407
Number of pages	5
Journal	APPLIED OPTICS
Volume	64
Issue number	10
DOIs	https://doi.org/10.1364/AO.551861
State	Published - 1 Apr 2025

All Science Journal Classification (ASJC) codes

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

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abstract = "We present a simple method to dynamically modify the focal position of a Bessel beam without changing its non-diffraction length and intensity profile. This is done by generating the Bessel beam in Fourier space using an annular aperture while adding a radial grating to the aperture with a tunable periodicity. This method can be useful for various applications, such as microscopy and optical trapping.",

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AB - We present a simple method to dynamically modify the focal position of a Bessel beam without changing its non-diffraction length and intensity profile. This is done by generating the Bessel beam in Fourier space using an annular aperture while adding a radial grating to the aperture with a tunable periodicity. This method can be useful for various applications, such as microscopy and optical trapping.

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Bessel beams with an adjustable focal position

Abstract

All Science Journal Classification (ASJC) codes

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