1989
DOI: 10.1016/0030-4018(89)90131-4
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Directionality of partially coherent Bessel-Gauss beams

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Cited by 80 publications
(14 citation statements)
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“…In the experiment, a ChG beam can be produced in a ring resonator with a ChG apodized aperture [21], or by superimposing two decentered Gaussian beams [22]. Then, by passing the ChG beam through a random phase screen, the ChG beam becomes partially coherent [23]. Finally, the partially coherent ChG vortex beam is obtainable using computer-generated holograms [24], etc.…”
Section: Resultsmentioning
confidence: 99%
“…In the experiment, a ChG beam can be produced in a ring resonator with a ChG apodized aperture [21], or by superimposing two decentered Gaussian beams [22]. Then, by passing the ChG beam through a random phase screen, the ChG beam becomes partially coherent [23]. Finally, the partially coherent ChG vortex beam is obtainable using computer-generated holograms [24], etc.…”
Section: Resultsmentioning
confidence: 99%
“…[16], the fully coherent beam can be extended to the partially coherent one by introducing a Gaussian term of the spectral degree of coherence. Thus, we consider a partially coherent ShG beam whose crossspectral density function at the source plane z ¼ 0 in the rectangular coordinate system is expressed as [8] W ð0Þ ðx 0…”
Section: Propagation Equationmentioning
confidence: 99%
“…Such a type of beam can be produced when a fully coherent ShG beam passes through a random-phase plate or a liquid crystal [16]. Based on the paraxial form of extended Huygens-Fresnel principle [2], the intensity of partially coherent ShG beams at the z plane in turbulent atmosphere reads as…”
Section: Propagation Equationmentioning
confidence: 99%
“…A well-known example of partially coherent beams is the Gaussian Schell-model (GSM) beam, which has been studied extensively [1]. Besides GSM beams, there are a variety of partially coherent beams which can be produced by various sources, e.g., see [2][3][4][5] and have different propagation properties. On the other hand, in practical applications, such as the laser materials processing, micromachining in the electronics industry, laser fusion, atom trapping and guiding, different intensity profiles including flat-topped one, beams with central dip whose central intensity minimum I min 6 ¼0, and bottle beams, i.e., beams with a dark focus I min ¼ 0 surrounded by regions of higher intensity, etc.…”
Section: Introductionmentioning
confidence: 99%