Zobrazeno 1 - 10
of 31
pro vyhledávání: '"V. Yu. Fedorov"'
Autor:
M. Chambonneau, M. Blothe, Q. Li, V. Yu. Fedorov, T. Heuermann, M. Gebhardt, C. Gaida, S. Tertelmann, F. Sotier, J. Limpert, S. Tzortzakis, S. Nolte
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043037 (2021)
In-volume ultrafast laser direct writing of silicon is generally limited by strong nonlinear propagation effects preventing the production of modifications. By using advantageous spectral, temporal, and spatial conditions, we demonstrate that modific
Externí odkaz:
https://doaj.org/article/0e0dbaf52d0c498db63a2f5e77a19aad
Autor:
Claudia Gollner, V. Yu. Fedorov, Stelios Tzortzakis, Andrius Baltuška, Anastasios D. Koulouklidis, Valentina Shumakova, Audrius Pugžlys
Publikováno v:
Next-Generation Spectroscopic Technologies XIII.
Extreme nonlinear interactions of THz electromagnetic fields with matter are the next frontier in nonlinear optics. However, reaching this frontier in free space is limited by the existing lack of appropriate powerful THz sources. Here we demonstrate
Autor:
V. Yu. Fedorov
Publikováno v:
Technology of technosphere safety. 78:19-25
Autor:
Claudia Gollner, Andrius Baltuška, Stelios Tzortzakis, Valentina Shumakova, V. Yu. Fedorov, Audrius Pugzlys, Anastasios D. Koulouklidis
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Nonlinear (NL) interactions of strong THz electric and magnetic fields with matter are the next frontier in nonlinear optics. NL THz spectroscopy requires ultrashort/broadband THz pulses with high electric field strengths. Here, we report on THz gene
Autor:
Nikolay Panov, I. A. Nikolaeva, V. Yu. Fedorov, Olga G. Kosareva, Arnaud Couairon, Stelios Tzortzakis, Daniil E. Shipilo
Publikováno v:
Physical Review E
Physical Review E, American Physical Society (APS), 2019, 100 (3), ⟨10.1103/PhysRevE.100.033316⟩
Physical Review E, American Physical Society (APS), 2019, 100 (3), ⟨10.1103/PhysRevE.100.033316⟩
We derive nonparaxial input conditions for simulations of tightly focused electromagnetic fields by means of unidirectional nonparaxial vectorial propagation equations. The derivation is based on the geometrical optics transfer of the incident electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49c5066702d5a5713f2f8aafc8c4437a
https://hal.archives-ouvertes.fr/hal-02346097
https://hal.archives-ouvertes.fr/hal-02346097
Publikováno v:
Optics Letters
We theoretically study the evolution of ring-Airy beams during harmonic generation with the focus on the regime of pump energy depletion. We demonstrate that in this regime, ring-Airy beams still preserve their abrupt autofocusing properties, while t
Autor:
V. Yu. Fedorov, Yu. M. Chernov, O. V. Klyavin, L. I. Derkachenko, V. V. Shpeizman, N. N. Aruev
Publikováno v:
Physics of the Solid State. 58:711-715
The load dependence of the microhardness of polycrystalline aluminum and iron specimens produced by rolling in a nitrogen, helium, or air medium has been investigated. It has been found that nitrogen and helium have different effects on the microhard
Autor:
Claudia Gollner, A. M. Zheltikov, Aleksandr V. Mitrofanov, Valentina Shumakova, Daniil Kartashov, Andrius Baltuška, A. A. Voronin, Audrius Pugzlys, Stylianos Tzortzakis, V. Yu. Fedorov
Publikováno v:
Scopus-Elsevier
We report results of experimental investigation on polarization evolution and losses in linearly and circularly polarized mid-IR filaments in air under different focusing conditions.
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2016, 117 (4), ⟨10.1103/PhysRevLett.117.043902⟩
Physical Review Letters, 2016, 117 (4), ⟨10.1103/PhysRevLett.117.043902⟩
Physical Review Letters, American Physical Society, 2016, 117 (4), ⟨10.1103/PhysRevLett.117.043902⟩
Physical Review Letters, 2016, 117 (4), ⟨10.1103/PhysRevLett.117.043902⟩
International audience; Although tightly focused intense ultrashort laser pulses are used in many applications from nano-processing to warm dense matter physics, their nonparaxial propagation implies the use of numerical simulations with vectorial wa
Publikováno v:
Quantum Electronics. 41:382-386
We have studied numerically the evolution of the light field intensity and induced refractive index of a medium upon filamentation of femtosecond laser radiation in air. It is shown that the intensity clamping results from the dynamic balance of opti