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Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126037
Abstract: Abstract This work presents the exact radial refractive index profile of a graded-index lens required to produce an annular beam. The index profile variation obtained is compatible with MCVD fiber fabrication process. Moreover, we show…
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Keywords:
index;
produce annular;
graded index;
annular beam ... See more keywords
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Published in 2017 at "Advances in Mathematical Physics"
DOI: 10.1155/2017/8141549
Abstract: A linear theory for the electromagnetic properties and interactions of an annular beam-ion channel system in plasma waveguide is presented. The dispersion relations for two families of propagating modes, including the electrostatic and transverse magnetic…
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Keywords:
annular beam;
ion channel;
interaction;
beam ... See more keywords
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3
Published in 2023 at "Optics express"
DOI: 10.1364/oe.480954
Abstract: Higher brightness UV light sources based on laser-sustained plasma (LSP) finds critical applications in high-resolution optical inspection and measurement. An annular beam focused with a low F-number is proposed for the first time to investigate…
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Keywords:
investigation laser;
laser sustained;
beam;
sustained plasma ... See more keywords
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Published in 2022 at "Optics letters"
DOI: 10.1364/ol.464551
Abstract: This Letter reports a new, to the best of our knowledge, photoacoustic excitation method for evaluating the shear viscoelastic properties of soft tissues. By illuminating the target surface with an annular pulsed laser beam, circularly…
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Keywords:
beam;
shear viscoelastic;
properties soft;
soft tissues ... See more keywords
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2
Published in 2023 at "Optics letters"
DOI: 10.1364/ol.490194
Abstract: An adjustable optical vortex array (OVA) based on decentered annular beam pumping has been demonstrated in an end-pumped Nd:YVO4 laser. This method allows for not only the transverse mode locking of different modes, but also…
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Keywords:
beam pumping;
based decentered;
vortex array;
decentered annular ... See more keywords