Search Results - "Stoyanov, Lyubomir"

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  1. 1

    Zeroth- and first-order long range non-diffracting Gauss–Bessel beams generated by annihilating multiple-charged optical vortices by Stoyanov, Lyubomir, Zhekova, Maya, Stefanov, Aleksander, Stefanov, Ivan, Paulus, Gerhard G., Dreischuh, Alexander

    Published in Scientific reports (15-12-2020)
    “…We demonstrate an alternative approach for generating zeroth- and first-order long range non-diffracting Gauss–Bessel beams (GBBs). Starting from a Gaussian…”
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    Journal Article
  2. 2

    Focal beam structuring by triple mixing of optical vortex lattices by Stoyanov, Lyubomir, Maleshkov, Georgi, Stefanov, Ivan, Paulus, Gerhard G., Dreischuh, Alexander

    Published in Optical and quantum electronics (2022)
    “…On-demand generation and reshaping of arrays of focused laser beams is highly desired in many areas of science and technology. In this work, we present a…”
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    Journal Article
  3. 3

    Far field diffraction of an optical vortex beam by a fork-shaped grating by Stoyanov, Lyubomir, Topuzoski, Suzana, Stefanov, Ivan, Janicijevic, Ljiljana, Dreischuh, Alexander

    Published in Optics communications (01-09-2015)
    “…In this work we report experimental data confirming the analytically predicted transformation of the topological charge (TC) of an input optical vortex (OV)…”
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    Journal Article
  4. 4

    Gouy phase of Bessel-Gaussian beams: theory vs. experiment by Stoyanov, Lyubomir, Stefanov, Aleksander, Dreischuh, Alexander, Paulus, Gerhard G

    Published in Optics express (24-04-2023)
    “…It is well-known that the wave of a freely propagating Gaussian beam experiences an additional π phase shift compared to a plane wave. This phase shift, known…”
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    Journal Article
  5. 5

    Long-range quasi-non-diffracting Gauss-Bessel beams in a few-cycle laser field by Stoyanov, Lyubomir, Zhang, Yinyu, Dreischuh, Alexander, Paulus, Gerhard G

    Published in Optics express (29-03-2021)
    “…Many applications ranging from nonlinear optics to material processing would benefit from pulsed ultrashort (quasi-)non-diffracting Gauss-Bessel beams (GBBs)…”
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    Journal Article
  6. 6

    Generation of long range low-divergent Gauss–Bessel beams by annihilating optical vortices by Stoyanov, Lyubomir, Zhekova, Maya, Stefanov, Aleksander, Ivanov, Boris, Stefanov, Ivan, Paulus, Gerhard G., Dreischuh, Alexander

    Published in Optics communications (01-02-2021)
    “…Bessel beams are remarkable since they do not diverge. Accordingly, they have numerous applications ranging from precision laser micro-machining to laser…”
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    Journal Article
  7. 7

    Five-vortex spot patterns generated by diffraction of azimuthally X-shaped beam from a fork-shaped grating by Topuzoski, Suzana, Janicijevic, Ljiljana, Stoyanov, Lyubomir, Stefanov, Ivan, Dreischuh, Alexander

    Published in Optics communications (01-12-2018)
    “…By theoretical and experimental methods it is demonstrated how a beam whose amplitude profile is X-modulated in azimuthal direction, with central dark…”
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    Journal Article
  8. 8

    Formation of multi-spot focal arrays by square-shaped optical vortex lattices by Zhekova, Maya, Maleshkov, Georgi, Stoyanov, Lyubomir, Stefanov, Ivan, Paulus, Gerhard G., Dreischuh, Alexander

    Published in Optics communications (15-10-2019)
    “…In this work, we present numerical simulations and experimental evidence for the creation of controllable multi-spot focal arrays composed of bright beams with…”
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    Journal Article
  9. 9

    Emotional Behavior of Aged A53T α-Synuclein Parkinson Mice by Stoyanov, Lyubomir

    Published 01-01-2021
    “…Morbus Parkinson ist eine tödliche, unheilbare, neurodegenerative Erkrankung, von der weltweit etwa 4 Millionen Menschen betroffen sind. α-Synuclein…”
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    Dissertation
  10. 10

    Optical vortices in brief: introduction for experimentalists by Stoyanov, Lyubomir, Topuzoski, Suzana, Paulus, Gerhard G., Dreischuh, Alexander

    Published in European physical journal plus (10-08-2023)
    “…In this review, starting with the essence of phase singularities (Sect.  1 ) and continuing with the methods for the generation of singular beams of different…”
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    Journal Article
  11. 11
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  13. 13

    Pulse front tilt measurement of femtosecond laser pulses by Dimitrov, Nikolay, Stoyanov, Lyubomir, Stefanov, Ivan, Dreischuh, Alexander, Hansinger, Peter, Paulus, Gerhard G.

    Published in Optics communications (15-07-2016)
    “…In this work we report experimental investigations of an intentionally introduced pulse front tilt on femtosecond laser pulses by using an inverted field…”
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    Journal Article
  14. 14