Journal ArticleDOI
Diffractive patterns of small cores generated by interference of Bessel beams.
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TLDR
This work considers a way of obtaining a narrower diameter of the central core of a diffractive pattern generated by the Bessel beams by superposition of two or more Bessel beam with appropriately chosen amplitudes and widths.Abstract:
The characteristic dimensions of Bessel beams are fully determined by the corresponding Bessel functions. We consider a way of obtaining a narrower diameter of the central core of a diffractive pattern generated by the Bessel beams. The method relies on superposition of two or more Bessel beams with appropriately chosen amplitudes and widths. The disturbing influence of the aperture's edges can be eliminated by addition of the proper amplitude filter.read more
Citations
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Journal ArticleDOI
Interfering Bessel beams for optical micromanipulation.
TL;DR: The self-healing properties of interfering Bessel beams allow the simultaneous manipulation and rotation of particles in spatially separated sample cells in optical tweezers and rotators.
Journal ArticleDOI
Interference of traveling nondiffracting beams
TL;DR: Numerically the interference resulting from the superposition of two Bessel beams propagating in free space is studied and the existence of the self-imaging effect during propagation is shown.
Journal ArticleDOI
Generation of controllable nondiffracting beams using multimode optical fibers
TL;DR: In this paper, a method of generating nondiffracting beams using multimode optical fibers is reported. But it is only linearly polarized (LP0,n) modes that are excited inside the multimode fiber segment because of mode orthogonality and on-axis excitation.
Journal ArticleDOI
Design and fabrication of a double-axicon for generation of tailorable self-imaged three-dimensional intensity voids
TL;DR: A new design for fabrication of a highly power-efficient double axicon to generate self-imaged three-dimensional intensity voids along the propagation of a beam is proposed.
Journal ArticleDOI
Self-reconstruction of a Bessel beam in a nonlinear medium
TL;DR: In this article, it was observed that by blocking more than 80% of the azimuth of the aperture of a Bessel beam, a full 360° far field ring is reconstructed after the beam passes through a liquid.
References
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Journal ArticleDOI
Diffraction-free beams.
TL;DR: The first experimental investigation of nondiffracting beams, with beam spots as small as a few wavelengths, can exist and propagate in free space, is reported.
Journal ArticleDOI
Exact solutions for nondiffracting beams. I. The scalar theory
TL;DR: In this paper, exact nonsingular solutions of the scalar-wave equation for beams that are non-diffracting were presented, which means that the intensity pattern in a transverse plane is unaltered by propagating in free space.
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Realization of general nondiffracting beams with computer-generated holograms
TL;DR: This work shows by the method of stationary phase that any of these wave fields can be realized approximately with a laser and a single computer-generated hologram, and demonstrates experimentally the formation of arbitrary-order Bessel beams and rotationally nonsymmetric beams.