Results 31 to 40 of about 107,392 (290)
Partially incoherent optical vortices in self-focusing nonlinear media [PDF]
, 2003 We observe stable propagation of spatially localized single- and double-charge optical vortices in a self-focusing nonlinear medium. The vortices are created by self-trapping of partially incoherent light carrying a phase dislocation, and they are ...
C. Anastassiou +14 more
core +1 more source
Compact representations of partially coherent undulator radiation suitable for wave propagation
Physical Review Special Topics. Accelerators and Beams, 2015 Undulator radiation is partially coherent in the transverse plane, with the degree of coherence depending on the ratio of the electron beam phase space area (emittance) to the characteristic radiation wavelength λ. On the other hand, numerical codes used
Ryan R. Lindberg, Kwang-Je Kim
doaj +1 more source
Nanophotonics, 2023 The intensity distributions and statistics of partially coherent light fields with random fluctuations have proven to be more robust than for coherent light.
Lu Xingyuan +4 more
doaj +1 more source
Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber
Applied Sciences, 2018 We study the problem of coupling partially coherent radially polarized (PCRP) vortex beams into a single-mode optical fiber. Using the well-known concept of the cross-spectral density (CSD) matrix, we derive a general expression for the coupling ...
Xinlei Zhu +4 more
doaj +1 more source
Coherence effects in Mie scattering [PDF]
, 2012 The scattering of a partially coherent beam by a deterministic, spherical scatterer is studied. In particular, the Mie scattering by a Gaussian Schell-model beam is analyzed.
Dijk, T. van +3 more
core +3 more sources
Partially Coherent, Radially Polarized Beam with Annular Apodization
The Scientific World Journal, 2014 Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to ...
C. Mariyal +3 more
doaj +1 more source
Applied Sciences, 2019 The characteristics of partially coherent circular flattened Gaussian vortex beams in turbulent biological tissues are investigated, and the analytical formula for the cross-spectral density of this beam is derived.
Yongzhou Ni +3 more
doaj +1 more source
Discrete solitons and soliton-induced dislocations in partially-coherent photonic lattices
, 2004 We investigate the interaction between a light beam and a two-dimensional photonic lattice that is photo-induced in a photorefractive crystal using partially coherent light.
Chen, Zhigang +3 more
core +1 more source
Experimental generation of an optical field with arbitrary spatial coherence properties [PDF]
, 2013 We describe an experimental technique to generate a quasi-monochromatic field with any arbitrary spatial coherence properties that can be described by the cross-spectral density function, $W(\mathbf{r_1,r_2})$.
Boyd, Robert W. +3 more
core +4 more sources
Self-steering partially coherent vector beams
Optics Express, 2019 We introduce a class of self-steering partially coherent vector optical beams with the aid of a generalized complex Gaussian representation. We show that such partially coherent vector beams have mobile guiding centers of their intensity and polarization state distributions on the beam free space propagation that could be employed to generate far-field
Haidan Mao +5 more
openaire +2 more sources