Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Maya Zhekova"'
Autor:
Lyubomir Stoyanov, Maya Zhekova, Aleksander Stefanov, Ivan Stefanov, Gerhard G. Paulus, Alexander Dreischuh
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
Abstract We demonstrate an alternative approach for generating zeroth- and first-order long range non-diffracting Gauss–Bessel beams (GBBs). Starting from a Gaussian beam, the key point is the creation of a bright ring-shaped beam with a large radi
Externí odkaz:
https://doaj.org/article/38dbc2c62419435abd271b8ca746c377
Autor:
Alexander Dreischuh, I. L. Stefanov, Georgi Maleshkov, Maya Zhekova, Lyubomir Stoyanov, Gerhard G. Paulus
Publikováno v:
Optics Communications. 449:110-116
In this work, we present numerical simulations and experimental evidence for the creation of controllable multi-spot focal arrays composed of bright beams with flat phase profiles. The input phase structures sent to spatial light modulators were squa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d184caa5bb6fc3376b568a61c3fab1
https://doi.org/10.1016/j.optcom.2019.05.051
https://doi.org/10.1016/j.optcom.2019.05.051
Publikováno v:
Optics communications 504, 127493 (2022). doi:10.1016/j.optcom.2021.127493
Among the existing techniques for measuring ultrashort pulse durations, the two classical second-order methods - interferometric and the background-free autocorrelation - are distinguished due to their simplicity and reliability. In this work we repo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc52c4a40e0adf6c331e6e5ed43ea69b
https://doi.org/10.1016/j.optcom.2021.127493
https://doi.org/10.1016/j.optcom.2021.127493
Publikováno v:
20th International Conference and School on Quantum Electronics: Laser Physics and Applications.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bb571b8fe3d7ce560eeaaa918f1b3e4
https://doi.org/10.1117/12.2516531
https://doi.org/10.1117/12.2516531
Autor:
Maya Zhekova, Lyubomir Stoyanov, Gerhard G. Paulus, Alexander Dreischuh, I. L. Stefanov, Georgi Maleshkov
Publikováno v:
Scientific reports 9(1), 2128 (2019). doi:10.1038/s41598-019-38608-5
Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific reports 9(1), 2128 (2019). doi:10.1038/s41598-019-38608-5
Published by Macmillan Publishers Limited, part of Springer Nature, [London]
Published by Macmillan Publishers Limited, part of Springer Nature, [London]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40763365ea1f6dfedfdbccb3f9beebaf
Autor:
Alexander Dreischuh, Boris Ivanov, Lyubomir Stoyanov, A. A. Stefanov, Gerhard G. Paulus, Maya Zhekova, I. L. Stefanov
Publikováno v:
Optics Communications. 480:126510
Bessel beams are remarkable since they do not diverge. Accordingly, they have numerous applications ranging from precision laser micro-machining to laser particle acceleration. We demonstrate a novel approach for generating long-range Gauss–Bessel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b7577e37be1d486193f9e7f662de7f6
https://doi.org/10.1016/j.optcom.2020.126510
https://doi.org/10.1016/j.optcom.2020.126510
Publikováno v:
Optics Communications. 456:124530
In this work, we present an improved technique for measuring both the magnitude and sign of the topological charge of input optical vortex beams carried by short laser pulses. Numerical simulations and experimental evidences for the interference sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01b5e343add08ed17455635425f1bad6
https://doi.org/10.1016/j.optcom.2019.124530
https://doi.org/10.1016/j.optcom.2019.124530
Autor:
Darina Truchlá, Todor Bogdanov, Kateřina Smejkalová, Maya Zhekova, E Benova, František Krčma, Ivan Tsonev, Zdenka Kozáková, Plamena Marinova
Publikováno v:
Journal of Physics D: Applied Physics. 51:414001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc37e50fa9187eff8283d0fbc0b6f313
https://doi.org/10.1088/1361-6463/aad82b
https://doi.org/10.1088/1361-6463/aad82b
Autor:
I. L. Stefanov, Lyubomir Stoyanov, Georgi Maleshkov, Gerhard G. Paulus, Aleksander A. Dreischuh, Maya Zhekova
Publikováno v:
Journal of Optics. 20:095601
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a4906a7b51eea3b58f08fdaa61349c6
https://doi.org/10.1088/2040-8986/aad30e
https://doi.org/10.1088/2040-8986/aad30e
Autor:
I. L. Stefanov, Maya Zhekova, Dragomir N. Neshev, Alexander Dreischuh, Lyubomir Stoyanov, Georgi Maleshkov, Gerhard G. Paulus
Publikováno v:
Journal of the Optical Society of America B. 35:402
In this work, we demonstrate experimentally the formation of 10 different structures consisting of bright beams with flat phase fronts in the focus of a lens (i.e., in the artificial far field). The basic structure used is a large, stable, square-sha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d040c730edfabb5d0af41bf46847cc7
https://doi.org/10.1364/josab.35.000402
https://doi.org/10.1364/josab.35.000402