Zobrazeno 1 - 10
of 320
pro vyhledávání: '"Kestutis, Staliunas"'
Publikováno v:
APL Photonics, Vol 9, Iss 10, Pp 106115-106115-9 (2024)
We propose an efficient mode management scheme in active nonlinear multimode fibers based on non-Hermitian potentials in the longitudinal direction with an antisymmetric transverse profile. The proposal takes advantage of the nonlinear saturation tow
Externí odkaz:
https://doaj.org/article/2dc64b68c92444e8bd3c9cd0b32e891c
Publikováno v:
Phys. Rev. A 101, 033833 (2020)
We provide a feasible and compact scheme to control and stabilize the spatiotemporal dynamics of BAS lasers. The proposal is based on the ability of non-Hermitian potentials with given local symmetries to manage the flow of light. A local PT-symmetri
Externí odkaz:
http://arxiv.org/abs/1906.09146
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-9 (2023)
Machine learning has demonstrated effectiveness in optimizing complex physical structures. In this study, the authors employ a machine learning approach to inversely design non-Hermitian layered optical systems with gain and loss modulation, showing
Externí odkaz:
https://doaj.org/article/bcb6fd6a298243e48d513aa3301bfe53
Publikováno v:
Nanomaterials, Vol 14, Iss 1, p 49 (2023)
The goal and essential parameter of laser light conversion is achieving emitted radiation of higher brightness. For many applications, the laser beam must have the highest available beam quality and highest achievable power. However, lasers with high
Externí odkaz:
https://doaj.org/article/1956e672103f48868579c2293392e401
Autor:
Florent Bessin, Auro M. Perego, Kestutis Staliunas, Sergei K. Turitsyn, Alexandre Kudlinski, Matteo Conforti, Arnaud Mussot
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
In normal dispersion, modulation instability, which is a precursor of Kerr combs, is forbidden due to phase mismatch. Here, the authors show the compensation of such phase mismatch by introducing frequency-dependent loss using a notch filter, hence l
Externí odkaz:
https://doaj.org/article/a1046ee1eaf2410688e9ab58120c5819
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract Light localization and intensity enhancement in a woodpile layer-by-layer photonic crystal, whose interlayer distance along the light propagation direction is gradually varied, has been theoretically predicted and experimentally demonstrated
Externí odkaz:
https://doaj.org/article/f1808e4ad3cb40738a0c85ce8c092c49
Publikováno v:
Holography: Advances and Modern Trends VIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e410a2f154cd98ab5ec5dd944f7ad5d9
https://doi.org/10.1117/12.2665568
https://doi.org/10.1117/12.2665568
We analyze the transverse modes in flat-flat mirror microchip-laser resonators, which occur due to the gain guiding and the thermal lensing. We rigorously calculate the transverse-mode functions, their eigenfrequencies, and their generation-threshold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9af3d138f2977a01393740f6120574d7
https://hdl.handle.net/2117/387990
https://hdl.handle.net/2117/387990
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-5 (2016)
Dissipative Faraday instability by periodic zig-zag modulation of spectral losses can lead to pattern formation in variety of systems. Here, the authors employ this nonlinear instability as a technique to achieve high-order harmonic mode-locking in a
Externí odkaz:
https://doaj.org/article/f8c1fb1fc0bd4bee9f25a58ed53167fc
Publikováno v:
Chaos, solitons and fractals, Oxford : Pergamon-Elsevier Science, 2022, vol. 165, part 2, art. no. 112774, p. [1-8]
We show an efficient mechanism to control optical turbulence in systems with different dispersion laws, including parabolic, sub-diffractive, hyper-diffractive or general fractional dispersion. The method is based on the modification of the energy ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9752a96289fe861e9d412526316bcde
https://hdl.handle.net/2117/382733
https://hdl.handle.net/2117/382733