Exact graded-index profile to produce an annular beam
Sign Up to like & getrecommendations! 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… read more here.
Keywords: index; produce annular; graded index; annular beam ... See more keywords
Hollow cylindrical three-dimensional nonlinear photonic crystal for annular beam generation
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0219725
Abstract: We present a hollow cylindrical three-dimensional nonlinear photonic crystal for annular beam shaping. By inducing a modification with the near-infrared femtosecond laser inside lithium niobate, we experimentally achieve second-order nonlinear optical coefficient modulation in three… read more here.
Keywords: dimensional nonlinear; cylindrical three; beam; annular beam ... See more keywords
Electromagnetic Waves Dispersion and Interaction of an Annular Beam-Ion Channel System in Plasma Waveguide
Sign Up to like & getrecommendations! 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… read more here.
Keywords: annular beam; ion channel; interaction; beam ... See more keywords
Investigation of the laser-sustained plasma of a Xenon lamp driven by an annular beam.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: investigation laser; laser sustained; beam; sustained plasma ... See more keywords
Photoacoustic testing of shear viscoelastic properties of soft tissues using annular beam illumination.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: beam; shear viscoelastic; properties soft; soft tissues ... See more keywords
Generation of a vortex point adjustable vortex array based on decentered annular beam pumping.
Sign Up to like & getrecommendations! 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… read more here.
Keywords: beam pumping; based decentered; vortex array; decentered annular ... See more keywords