Producing Bessel beams based on incoherent superposition of laser fields

M. Soskind; R. Soskind; Y. G. Soskind

doi:10.1117/12.2023786

28 September 2013 Producing Bessel beams based on incoherent superposition of laser fields

M. Soskind, R. Soskind, Y. G. Soskind

Proceedings Volume 8843, Laser Beam Shaping XIV; 88430O (2013) https://doi.org/10.1117/12.2023786
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Bessel beams belong to a class of propagation invariant, structured beams, and are used in a variety of applications, including particle micro-manipulation, optical coherence tomography, optical metrology, and high resolution microscopy. In practical applications, Bessel beams are formed by the interaction of optical fields with finite lateral dimensions. In this paper, we discuss the formation and propagation characteristics of Bessel beams based on input field distributions defined by Laguerre-Gaussian beams of different orders. We present the influence of the beam order on the shape and the axial intensity distribution of the resulting Bessel beams. One of the limiting factors in the applications of Bessel beams is related to the variations in the axial intensity distribution of the produced beams. We show that the incoherent superposition of input Laguerre-Gaussian beams of different orders can resolve the above limitation and produce Bessel beams with uniform peak intensity distributions over an extended axial distance.

Citation Download Citation

M. Soskind, R. Soskind, and Y. G. Soskind "Producing Bessel beams based on incoherent superposition of laser fields", Proc. SPIE 8843, Laser Beam Shaping XIV, 88430O (28 September 2013); https://doi.org/10.1117/12.2023786

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