Topic
Bessel beam
About: Bessel beam is a research topic. Over the lifetime, 1946 publications have been published within this topic receiving 42264 citations.
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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.
50 citations
TL;DR: In this article, the modifications of the angular spectrum of an intense Bessel beam caused by its self-action in a nonlinear medium were revealed, and the appearance of a central spot and outer ring in its angular spectrum was observed.
50 citations
TL;DR: In this article, it was shown that the elegant Laguerre-Gauss light beams of high radial order n are asymptotically equal to Bessel Gauss light beam, and a new experimental procedure for generating light beams with nondiffractinglike properties directly from the output of a stable resonator was proposed.
Abstract: We show that the elegant Laguerre–Gauss light beams of high radial order n are asymptotically equal to Bessel–Gauss light beams. The Bessel–Gauss beam equivalent to each elegant Laguerre–Gauss beam is found and shown to have almost identical propagation factors M2. In the limit n→∞, elegant Laguerre–Gauss beams can be identified with Durnin’s Bessel beam. Our results suggest a new experimental procedure for generating light beams with nondiffractinglike properties directly from the output of a stable resonator.
50 citations
TL;DR: In this article, by utilizing dielectric Huygens metasurfaces as ultrathin, compact platforms by integrating the functionalities of Dammann gratings and axicons, they successfully demonstrate multiple Bessel beam generation with polarization-independent property.
Abstract: Abstract Bessel beams have attracted considerable interest because of their unique non-diffractive, self-healing characteristics. Different approaches have been proposed to generate Bessel beams, such as using axicons, diffractive optical elements, composite holograms, or spatial light modulators. However, these approaches have suffered from limited numerical aperture, low efficiency, polarization-dependent properties, etc. Here, by utilizing dielectric Huygens metasurfaces as ultrathin, compact platforms by integrating the functionalities of Dammann gratings and axicons, we successfully demonstrate multiple Bessel beam generation with polarization-independent property. The number of two-dimensional arrays can be controlled flexibly, which can enhance information capacity with a total efficiency that can reach 66.36%. This method can have various applications, such as parallel laser fabrication, efficient optical tweezers, and optical communication.
50 citations
TL;DR: In this article, the diffractive phase elements (DPE) were designed to produce non-iffracting beams according to the beam-shaping scheme, in which the incident Gaussian-profile beam is converted into a Bessel-function J0 beam.
Abstract: We present a design of the diffractive phase elements (DPE’s) that produce nondiffracting beams according to the beam-shaping scheme, in which the incident Gaussian-profile beam is converted into a Bessel-function J0 beam. An optimization method is applied to solving this special beam-shaping problem. Numerical investigation of the generating J0 Bessel beam shows that the designed DPE can satisfactorily produce the J0 Bessel beam.
50 citations