Journal ArticleDOI
The taming of absorption: generating a constant intensity beam in a lossy medium
Reads0
Chats0
TLDR
The first observation (to the best knowledge) of a constant intensity, quasi-Bessel/nondiffracting beam in an absorbing medium generated by a novel optical element, "exicon," or exponential intensity axicon is reported.Abstract:
We report the first observation (to our best knowledge) of a constant intensity, quasi-Bessel/nondiffracting beam in an absorbing medium generated by a novel optical element, “exicon,” or exponential intensity axicon. Such absorption-compensated and diffraction-resistant beams can find applications in illumination, remote sensing, free-space communications, imaging in biological tissues, nonlinear optics, and other situations where absorption and diffraction hinder light propagation.read more
Citations
More filters
Journal ArticleDOI
Loss-proof self-accelerating beams and their use in non-paraxial manipulation of particles’ trajectories
TL;DR: This work uses loss-proof accelerating beams for manipulation of particles in fluids, steering the particles to steeper angles than ever demonstrated and shows exponential intensity growth, which facilitates other novel applications in micromanipulation and ignition of nonlinear processes.
Journal ArticleDOI
Generating attenuation-resistant frozen waves in absorbing fluid.
TL;DR: The attenuation-resistant frozen waves demonstrated here address the problem of propagation losses in absorbing media and can be beneficial for many applications in particle micro-manipulation, data communications, remote sensing, and imaging.
Journal ArticleDOI
Toward the optical “magic carpet”: reducing the divergence of a light sheet below the diffraction limit
TL;DR: It is shown, both theoretically and experimentally, that it is possible to generate a quasi-nondiffracting 2D light beam in a simple and efficient fashion by placing a mask consisting of a pair of double slits on a cylindrical lens.
Journal ArticleDOI
Generation of intensity-controlled two-dimensional shape-preserving beams in plasmonic lossy media
TL;DR: In this article, the shape-preserving beam of surface-plasmon polariton polariton wave was realized without the use of any gain media, but rather by strictly controlling the initial plasmonic wavefront.
Journal ArticleDOI
Creating order with the help of randomness: generating transversely random, longitudinally invariant vector optical fields.
Svetlana N. Khonina,Ilya Golub +1 more
TL;DR: It is shown that it is possible to generate transversely random, diffraction-free/longitudinally invariant vector optical fields, and the relative transverselyrandom phase distribution is also conserved along the optical axis.
References
More filters
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
Observation of accelerating Airy beams.
TL;DR: In this paper, the first observation of Airy optical beams has been reported in both one-and two-dimensional configurations, and they exhibit unusual features such as the ability to remain diffraction-free over long distances while they tend to freely accelerate during propagation.
Journal ArticleDOI
Accelerating finite energy Airy beams
TL;DR: This work investigates the acceleration dynamics of quasi-diffraction-free Airy beams in both one- and two-dimensional configurations and shows that this class of finite energy waves can retain their intensity features over several diffraction lengths.
Journal ArticleDOI
The Axicon: A New Type of Optical Element
TL;DR: The axicon autocollimator as discussed by the authors is a projector which projects a straight line of images into space, and it can be used to determine the perpendicularity of a mirror.