Journal ArticleDOI
Model for an anomalous hollow beam and its paraxial propagation
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TLDR
Based on the Collins integral formula, an analytical propagation formula for the anomalous hollow beam passing through a paraxial ABCD optical system is derived and the propagation properties in free space are studied graphically.Abstract:
A theoretical model is proposed to approximately describe an anomalous hollow beam of elliptical symmetry with an elliptical solid core, which was observed in experiment recently [Phys. Rev. Lett.94, 134802 (2005)]. Expressions for the propagation factor and effective beam spot size for the anomalous hollow beam are derived. Based on the Collins integral formula, an analytical propagation formula for the anomalous hollow beam passing through a paraxial ABCD optical system is derived. The propagation properties in free space are studied graphically.read more
Citations
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M2-factor of coherent and partially coherent dark hollow beams propagating in turbulent atmosphere.
TL;DR: The numerical results show that the M(2)- factor of a DHB in turbulent atmosphere increases on propagation, which is much different from its invariant properties in free-space, and is mainly determined by the parameters of the beam and the atmosphere.
Journal ArticleDOI
Propagation of various flat-topped beams in a turbulent atmosphere
TL;DR: In this article, the average intensity of flat-topped beams propagating in a turbulent atmosphere is derived in a tensor form, and the formulae derived can be easily reduced to those for flat-top beams in free space.
Journal ArticleDOI
Generation of a high-quality partially coherent dark hollow beam with a multimode fiber
TL;DR: The experimental generation of a high-quality partially coherent dark hollow beam (DHB) is reported by coupling a partially coherent beam into a multimode fiber (MMF) with a suitable incidence angle by closely controlled coherence of the input beam.
Journal ArticleDOI
Various dark hollow beams propagating in uniaxial crystals orthogonal to the optical axis
Dajun Liu,Zhongxiang Zhou +1 more
TL;DR: In this article, the propagation of dark hollow beams with circular, elliptical and rectangular symmetries in uniaxial crystals orthogonal to the optical axis is investigated.
Journal ArticleDOI
Elliptical Laguerre-Gaussian correlated Schell-model beam.
TL;DR: Analytical propagation formula for an elliptical LGCSM beam passing through a stigmatic ABCD optical system is derived and the experimental results are consistent with the theoretical predictions.
References
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Journal ArticleDOI
Laser spectroscopy of atoms guided by evanescent waves in micron-sized hollow optical fibers.
TL;DR: The first laser spectroscopic experiments on the Rb beam guided by blue-detuned evanescent waves in micron-sized hollow fibers show in-line spatial separation of two stable Rb isotopes.
Journal ArticleDOI
Laser cavity for generation of variable-radius rings of light
Xiao Wang,Michael G. Littman +1 more
TL;DR: A laser cavity that has a ring as its output mode that can be implemented in any tunable laser with large gain and can be useful when ring illumination patterns are needed.
Journal ArticleDOI
Generation of hollow Gaussian beams by spatial filtering
TL;DR: It is demonstrated that hollow Gaussian beams can be obtained from Fourier transform of the differentials of a Gaussian beam, and thus they can be generated by spatial filtering in the Fourier domain with spatial filters that consist of binomial combinations of even-order Hermite polynomials.
Journal ArticleDOI
Hollow elliptical Gaussian beam and its propagation through aligned and misaligned paraxial optical systems.
Yangjian Cai,Qiang Lin +1 more
TL;DR: The hollow elliptical Gaussian beam (HEGB) provides a convenient way to describe elliptical dark-hollow laser beams and can be used conveniently to study the motion of atoms in a dark- hollow laser beam.
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